--- title: "Delve into the Top 1%: Diamonds with the 8X® Ultimate Cut Grade" description: Ever wondered about the crème de la crème of diamond cuts? Discover GCAL by Sarine's 8X® Ultimate Cut Grade - the epitome of diamond brilliance!  image: https://blog.sarine.com/hubfs/2024%208X.jpg --- [![Sarine](https://blog.sarine.com/hubfs/Sarine_April2019%20Theme/Image/sarine.svg) THE DIAMOND INDUSTRY, REIMAGINED™](https://sarine.com/) search Verify Report Products demo En - [简体中文](http://sarine.com/sarine-profile/?lang=zh-hans) - [繁體中文](http://sarine.com/sarine-profile/?lang=zh-hant) ### **Interested in Sarine products?** Complete the form and we’ll contact you shortly Close En - [简体中文](http://sarine.com/sarine-profile/?lang=zh-hans) - [繁體中文](http://sarine.com/sarine-profile/?lang=zh-hant) - [日本語](http://sarine.com/sarine-profile/?lang=ja) Products demo - Products - [All Products](https://sarine.com/?product_category=all-products) - ROUGH PURCHASING - [Advisor® (Tenders)](https://sarine.com/products/sarine-advisor/) - [DiaMobile® XL](https://sarine.com/products/diamobile/) - [DiaScan® (Rough)](https://sarine.com/products/diascan-s-rough-2/) - ROUGH PLANNING - [Advisor®](https://sarine.com/products/sarine-advisor/) - [Best Value](https://sarine.com/products/best-value/) - [DiaExpert®](https://sarine.com/products/diaexpert/) - [DiaExpert® Edge](https://sarine.com/products/diaexpert-edge/) - [DiaExpert® Atom](https://sarine.com/products/diaexpert-atom/) - [DiaExpert® Eye](https://sarine.com/products/diaexpert-eye/) - [DiaExpert® Nano](https://sarine.com/products/diaexpert-nano/) - [DiaMark™ HD](https://sarine.com/products/diamarkhd/) - [DiaMark® Z](https://sarine.com/products/diamark-z/) - [DiaScan® S+ (Rough)](https://sarine.com/products/diascan-s-rough-2/) - [GIA Facetware® Planning](https://sarine.com/products/gia-facetware/) - [Inclusion Charting](https://sarine.com/products/inclusion-charting/) - [Tension Viewer](https://sarine.com/tension-viewer/) - [TruScan](https://sarine.com/products/truscan/) - INCLUSION SCANNING - [Galaxy® Tension](https://sarine.com/products/galaxy-tension/) - [Galaxy® 1000](https://sarine.com/products/galaxy-1000_sarine/) - [Galaxy® Ultra](https://sarine.com/products/galaxy-ultra/) - [Galaxy® 2000](https://sarine.com/products/galaxy-2000-sarine/) - [Galaxy® XL](https://sarine.com/products/galaxy-xl/) - [Galaxy® Meteor](https://sarine.com/products/galaxy-meteor/) - [Galaxy® Meteorite](https://sarine.com/products/galaxy-meteorite/) - LASER PROCESSING - [Solaris® 1000](https://sarine.com/products/solaris-100_sarine/) - [Quazer® Shaping](https://sarine.com/products/quazer-shaping/) - [Quazer® Industrial Cutting](https://sarine.com/products/quazer-industrial-cutting/) - [Quazer® 3](https://sarine.com/products/quazer-3/) - [Strategist®](https://sarine.com/products/strategist/) - [Turnstile](https://sarine.com/products/turnstile/) - GRADING - [AGS® Performance Grading](https://sarine.com/products/ags-cut-grading/) - [GIA Facetware®](https://sarine.com/products/gia-facetware-cutting/) - [DiaMension® HD](https://sarine.com/products/diamension-hd/) - [DiaMension® AXIOM](https://sarine.com/products/diamension-axiom/) - [DiaScan® S+](https://sarine.com/products/diascan-s-2/) - [DiaScribe®](https://sarine.com/products/diascribe/) - [Instructor®](https://sarine.com/products/instructor/) - [Sarine Light™](https://sarine.com/products/sarine-light/) - TRADE & RETAIL - [Sarine Loupe™](https://sarine.com/products/sarine-loupe/) - [Sarine Light™](https://sarine.com/products/sarine-light/) - [Sarine Profile™](https://sarine.com/retail/) - [RETAIL](https://sarine.com/retail/) - [LAB](https://sarine.com/sarine-lab/) - [DIAMOND JOURNEY](https://sarine.com/diamond-journey/) - [egrading](https://sarine.com/egrading/) - [Diamond Guide](https://sarine.com/home-new/diamond-guide/) - [SUPPORT](https://sarine.com/support/) - [BLOG](https://blog.sarine.com//) - [ABOUT US](https://sarine.com/about-us/about_sarine/) - [ABOUT SARINE](https://sarine.com/about-us/about_sarine/) - [CONTACT US](https://sarine.com/contactus/headquarters/) - [EVENTS & EXHIBITIONS](https://sarine.com/about-us/events-exhibitions/) - [OUR CORE VALUES](https://sarine.com/about-us/our-core-values/) - [SUBSIDIARIES](https://sarine.com/about-us/subsidiaries/) - [SOCIAL & CORPORATE RESPONSIBILITY](https://sarine.com/about-us/social-corporate-responsibility/) - [NEWSROOM](https://sarine.com/news/) - [CAREERS](https://sarine.com/careers/) - [INVESTOR RELATIONS](http://sarine.listedcompany.com/home.html) - CORPORATE INFORMATION - [IR HOME](http://sarine.listedcompany.com/home.html) - [CORPORATE PROFILE](http://sarine.listedcompany.com/profile.rev) - [CHAIRMAN STATEMENT](http://sarine.listedcompany.com/chairman.html) - [BOARD OF DIRECTORS](http://sarine.listedcompany.com/directors.rev) - [KEY MANAGEMENT EXECUTIVES](http://sarine.listedcompany.com/management.html) - [CORPORATE GOVERNANCE](http://sarine.listedcompany.com/governance.html) - FINANCIAL INFORMATION - [FINANCIALS](http://sarine.listedcompany.com/financials.html) - [FINANCIAL HIGHLIGHTS](http://sarine.listedcompany.com/highlights.html) - [FINANCIAL CALENDAR](http://sarine.listedcompany.com/financial_calendar.html) - [SHAREHOLDINGS](http://sarine.listedcompany.com/shareholdings.html) - [NEWSROOM](http://sarine.listedcompany.com/newsroom.html) - [ANOUNCEMENTS](http://sarine.listedcompany.com/newsroom.html) - STOCK INFORMATION - [STOCK FUNDAMENTALS](http://sarine.listedcompany.com/stock_fundamentals.html) - [INSIDER TRADES](http://sarin.listedcompany.com/stock_insider.html) - [ANALYST COVERAGE](http://sarine.listedcompany.com/analyst_coverage.html) - INFORMATION REQUEST - [CORPORATE VIDEO](http://sarine.listedcompany.com/video.html) - [INVESTORS CONTACT](http://sarine.listedcompany.com/contact.html) - [ALL DOWNLOADS](http://sarine.listedcompany.com/download.html) - [EMAIL ALERTS](http://sarine.listedcompany.com/email_alerts.html) - Products - [All Products](https://sarine.com/?product_category=all-products) - ROUGH PURCHASING - [Advisor® (Tenders)](https://sarine.com/products/sarine-advisor/) - [DiaMobile® XL](https://sarine.com/products/diamobile/) - [DiaScan® (Rough)](https://sarine.com/products/diascan-s-rough-2/) - ROUGH PLANNING - [Advisor®](https://sarine.com/products/sarine-advisor/) - [Best Value](https://sarine.com/products/best-value/) - [DiaExpert®](https://sarine.com/products/diaexpert/) - [DiaExpert® Edge](https://sarine.com/products/diaexpert-edge/) - [DiaExpert® Atom](https://sarine.com/products/diaexpert-atom/) - [DiaExpert® Eye](https://sarine.com/products/diaexpert-eye/) - [DiaExpert® Nano](https://sarine.com/products/diaexpert-nano/) - [DiaMark™ HD](https://sarine.com/products/diamarkhd/) - [DiaMark® Z](https://sarine.com/products/diamark-z/) - [DiaScan® S+ (Rough)](https://sarine.com/products/diascan-s-rough-2/) - [GIA Facetware® Planning](https://sarine.com/products/gia-facetware/) - [Inclusion Charting](https://sarine.com/products/inclusion-charting/) - [Tension Viewer](https://sarine.com/tension-viewer/) - [TruScan](https://sarine.com/products/truscan/) - INCLUSION SCANNING - [Galaxy® Tension](https://sarine.com/products/galaxy-tension/) - [Galaxy® 1000](https://sarine.com/products/galaxy-1000_sarine/) - [Galaxy® Ultra](https://sarine.com/products/galaxy-ultra/) - [Galaxy® 2000](https://sarine.com/products/galaxy-2000-sarine/) - [Galaxy® XL](https://sarine.com/products/galaxy-xl/) - [Galaxy® Meteor](https://sarine.com/products/galaxy-meteor/) - [Galaxy® Meteorite](https://sarine.com/products/galaxy-meteorite/) - LASER PROCESSING - [Solaris® 1000](https://sarine.com/products/solaris-100_sarine/) - [Quazer® Shaping](https://sarine.com/products/quazer-shaping/) - [Quazer® Industrial Cutting](https://sarine.com/products/quazer-industrial-cutting/) - [Quazer® 3](https://sarine.com/products/quazer-3/) - [Strategist®](https://sarine.com/products/strategist/) - [Turnstile](https://sarine.com/products/turnstile/) - GRADING - [AGS® Performance Grading](https://sarine.com/products/ags-cut-grading/) - [GIA Facetware®](https://sarine.com/products/gia-facetware-cutting/) - [DiaMension® HD](https://sarine.com/products/diamension-hd/) - [DiaMension® AXIOM](https://sarine.com/products/diamension-axiom/) - [DiaScan® S+](https://sarine.com/products/diascan-s-2/) - [DiaScribe®](https://sarine.com/products/diascribe/) - [Instructor®](https://sarine.com/products/instructor/) - [Sarine Light™](https://sarine.com/products/sarine-light/) - TRADE & RETAIL - [Sarine Loupe™](https://sarine.com/products/sarine-loupe/) - [Sarine Light™](https://sarine.com/products/sarine-light/) - [Sarine Profile™](https://sarine.com/retail/) - [RETAIL](https://sarine.com/retail/) - [LAB](https://sarine.com/sarine-lab/) - [DIAMOND JOURNEY](https://sarine.com/diamond-journey/) - [egrading](https://sarine.com/egrading/) - [Diamond Guide](https://sarine.com/home-new/diamond-guide/) - [SUPPORT](https://sarine.com/support/) - [BLOG](https://blog.sarine.com//) - [ABOUT US](https://sarine.com/about-us/about_sarine/) - [ABOUT SARINE](https://sarine.com/about-us/about_sarine/) - [CONTACT US](https://sarine.com/contactus/headquarters/) - [EVENTS & EXHIBITIONS](https://sarine.com/about-us/events-exhibitions/) - [OUR CORE VALUES](https://sarine.com/about-us/our-core-values/) - [SUBSIDIARIES](https://sarine.com/about-us/subsidiaries/) - [SOCIAL & CORPORATE RESPONSIBILITY](https://sarine.com/about-us/social-corporate-responsibility/) - [NEWSROOM](https://sarine.com/news/) - [CAREERS](https://sarine.com/careers/) - [INVESTOR RELATIONS](http://sarine.listedcompany.com/home.html) - CORPORATE INFORMATION - [IR HOME](http://sarine.listedcompany.com/home.html) - [CORPORATE PROFILE](http://sarine.listedcompany.com/profile.rev) - [CHAIRMAN STATEMENT](http://sarine.listedcompany.com/chairman.html) - [BOARD OF DIRECTORS](http://sarine.listedcompany.com/directors.rev) - [KEY MANAGEMENT EXECUTIVES](http://sarine.listedcompany.com/management.html) - [CORPORATE GOVERNANCE](http://sarine.listedcompany.com/governance.html) - FINANCIAL INFORMATION - [FINANCIALS](http://sarine.listedcompany.com/financials.html) - [FINANCIAL HIGHLIGHTS](http://sarine.listedcompany.com/highlights.html) - [FINANCIAL CALENDAR](http://sarine.listedcompany.com/financial_calendar.html) - [SHAREHOLDINGS](http://sarine.listedcompany.com/shareholdings.html) - [NEWSROOM](http://sarine.listedcompany.com/newsroom.html) - [ANOUNCEMENTS](http://sarine.listedcompany.com/newsroom.html) - STOCK INFORMATION - [STOCK FUNDAMENTALS](http://sarine.listedcompany.com/stock_fundamentals.html) - [INSIDER TRADES](http://sarin.listedcompany.com/stock_insider.html) - [ANALYST COVERAGE](http://sarine.listedcompany.com/analyst_coverage.html) - INFORMATION REQUEST - [CORPORATE VIDEO](http://sarine.listedcompany.com/video.html) - [INVESTORS CONTACT](http://sarine.listedcompany.com/contact.html) - [ALL DOWNLOADS](http://sarine.listedcompany.com/download.html) - [EMAIL ALERTS](http://sarine.listedcompany.com/email_alerts.html) [Subscribe to the blog](https://blog.sarine.com/delve-into-the-top-1-diamonds-with-the-8x-ultimate-cut-grade#sd-bar) [< BACK TO THE DIAMOND BLOG MAIN PAGE](https://blog.sarine.com) 08 July 2024 Like? Share! - - ![](https://blog.sarine.com/hubfs/2024%208X.jpg) # Delve into the Top 1%: Diamonds with the 8X® Ultimate Cut Grade Ever wondered about the crème de la crème of diamond cuts? GCAL by Sarine's 8X® Ultimate Cut Grade is the epitome of diamond brilliance!  The 8X® Ultimate Cut Grade was developed to distinguish the best of the best diamonds. In today’s market, While over 70% of natural round brilliant diamonds and 85% of lab-grown diamonds boast "excellent" cut grades, less than 1% of diamonds make the cut for the 8X grade. This innovative grading system comprehensively evaluates every facet of diamond cut quality. In order to attain an 8X cut grade, a diamond must excel in three distinct factors and achieve excellence across a total of eight different aspects in the assessment of cut quality. Only extraordinarily brilliant and beautiful diamonds achieve EXCELLENT grades in all the EIGHT aspects of CUT quality assessment. Join us as we uncover the eight critical factors that set the world's finest diamond cuts apart! ## ![GCAL-8X](https://blog.sarine.com/hs-fs/hubfs/GCAL-8X.png?width=450&height=450&name=GCAL-8X.png) ## Physical Excellence The first three of the 8X grading factors analyze the exactness of the physical surface, the facet shapes, as well as the angles.    ### 1. Polish Achieving 8X® Ultimate Cut Grade starts with a meticulous evaluation of the diamond’s Polish. Crafting a flawlessly polished diamond demands immense skill and dedication, involving an intricate process that takes time, and so does the grading process. At GCAL by Sarine, our expert gemologists scrutinize every facet of the diamond's surface, ensuring it is free of imperfections such as scratches, nicks, pits, dop, white polish, burn marks, and more. ![POLISH (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/POLISH%20(1).jpg?width=1200&length=1200&name=POLISH%20(1).jpg) ![PolishLines](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/PolishLines.jpg?width=1200&length=1200&name=PolishLines.jpg) ![Scracthes](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Scracthes.jpg?width=1200&length=1200&name=Scracthes.jpg) ![BurnMarks](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/BurnMarks.jpg?width=1200&length=1200&name=BurnMarks.jpg) ![Polish_Excellent](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Polish_Excellent.jpg?width=1200&length=1200&name=Polish_Excellent.jpg) ### 2. External Symmetry The second characteristic evaluated in the 8X® Cut Grade system is External Symmetry. High-resolution scanning instruments and skilled gemologists evaluate every facet with precision. They scrutinize the size, equality, and alignment of each facet, ensuring they harmoniously complement one another. From the alignment of the table facet and culet point to the symmetry of crown bezel facets with pavilion main facets, every detail is examined. Next time you marvel at a diamond's brilliance, remember the skill required to cut and polish every facet. It's not just a gem; it's a masterpiece crafted with precision and passion ![8X No2 External Symmetry (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/8X%20No2%20External%20Symmetry%20(1).jpg?width=1200&length=1200&name=8X%20No2%20External%20Symmetry%20(1).jpg) ![ExternalSymmetry_ShortFacets2 (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/ExternalSymmetry_ShortFacets2%20(1).jpg?width=1200&length=1200&name=ExternalSymmetry_ShortFacets2%20(1).jpg) ![ExternalSymmetry_MisalignmentC&P (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/ExternalSymmetry_MisalignmentC&P%20(1).jpg?width=1200&length=1200&name=ExternalSymmetry_MisalignmentC&P%20(1).jpg) ![ExternalSymmetry_Pointing (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/ExternalSymmetry_Pointing%20(1).jpg?width=1200&length=1200&name=ExternalSymmetry_Pointing%20(1).jpg) ![ExternalSymmetry_Excellent (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/ExternalSymmetry_Excellent%20(1).jpg?width=1200&length=1200&name=ExternalSymmetry_Excellent%20(1).jpg) ![ExternalSymmetry_Excellent alignment (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/ExternalSymmetry_Excellent%20alignment%20(1).jpg?width=1200&length=1200&name=ExternalSymmetry_Excellent%20alignment%20(1).jpg) ### 3. Proportions Next, Proportions play a crucial role as the 3rd characteristic evaluated. Decades of meticulous mathematical calculations have led us to identify the narrow proportion ranges necessary for crafting superior Ideal round brilliant cut diamonds. ![](https://lh7-us.googleusercontent.com/docsz/AD_4nXc0e_LsljDeWcNpXJ8wKedcGoTNvm6KuFpVIDklhiFN0L5QHZ379fjfH0jgjjVFpQKaBXdUIggOocPeQ3-ZcSRYA9kI5jQ64susrwOFUX574arA-1fTgX-R3oQ36VpCUEv8crubL6ikJc2Gqgq1JFH94GDT?key=zDeQFM9CrQANJGWNifDBzw) Our precise scanning technology meticulously measures every facet, angle, and dimension, generating precise, to-scale diagrams for each diamond. Similarly, for fancy-shaped diamonds, GCAL has extensively analyzed light performance data from hundreds of thousands of diamonds, pinpointing the precise proportion ranges essential for producing superior fancy-shaped diamonds. ![8X No3 Proportions (2)-1](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/8X%20No3%20Proportions%20(2)-1.jpg?width=1200&length=1200&name=8X%20No3%20Proportions%20(2)-1.jpg) ![Proportions-Fail 4](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Proportions-Fail%204.gif?width=1200&length=1200&name=Proportions-Fail%204.gif) ![Proportions-Fail 3](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Proportions-Fail%203.gif?width=1200&length=1200&name=Proportions-Fail%203.gif) ![Proportions-Fail 1](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Proportions-Fail%201.gif?width=1200&length=1200&name=Proportions-Fail%201.gif) ![Proportions-8X round-1](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Proportions-8X%20round-1.gif?width=1200&length=1200&name=Proportions-8X%20round-1.gif) ## Light Performance Excellence The next three of the 8X grading factors analyze the [light-handling ability of your diamond](https://sarine.com/diamond-guide/light-performance/). The combination of these factors is the essence of what makes any diamond visibly shine, dance, and sparkle from across a room.   ### 4. Optical Brilliance And now we delve into Brilliance, the heart of the diamond’s allure.  When evaluating a diamond’s 8X cut grade, the fourth characteristic that’s assessed is Optical Brilliance. This refers to the overall reflection of white light that can be seen by the observer. It’s precisely quantified to the thousandth decimal place as depicted in the image. The white areas on the image signify that the diamond has efficient light reflection, also known as brilliance, whereas dark blue areas indicate that there is light loss or leakage. A well-cut diamond isn’t just a pretty sight; it’s a performance. Its ability to handle light effectively is what sets it aglow, capturing hearts even from afar.  ![8X No4 Brilliance (3)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/8X%20No4%20Brilliance%20(3).jpg?width=1200&length=1200&name=8X%20No4%20Brilliance%20(3).jpg) ![Brilliance_Slide1_fail (2)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Brilliance_Slide1_fail%20(2).jpg?width=1200&length=1200&name=Brilliance_Slide1_fail%20(2).jpg) ![Brilliance_Slide2_fail (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Brilliance_Slide2_fail%20(1).jpg?width=1200&length=1200&name=Brilliance_Slide2_fail%20(1).jpg) ![Brilliance_Slide3_fail (2)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Brilliance_Slide3_fail%20(2).jpg?width=1200&length=1200&name=Brilliance_Slide3_fail%20(2).jpg) ![Brilliance_Slide4_fail (2)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Brilliance_Slide4_fail%20(2).jpg?width=1200&length=1200&name=Brilliance_Slide4_fail%20(2).jpg) ![Brilliance_Slide4_Excellent (2)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Brilliance_Slide4_Excellent%20(2).jpg?width=1200&length=1200&name=Brilliance_Slide4_Excellent%20(2).jpg) ### 5. Fire Ever been spellbound by how a diamond dances with sunlight, painting vibrant bursts of color? That’s Fire – the enchanting 5th characteristic evaluated in our revolutionary 8X cut grade. Fire is the captivating, colorful sparkle that results from white light dispersing into a rainbow within the diamond. These bursts of color enhance sparkle, especially with every graceful movement. It’s not just about beauty; Fire is a key factor in a [diamond’s light performance](https://sarine.com/diamond-guide/light-performance/), ensuring it never looks dull or lifeless. Every 8X certificate features a mesmerizing Fire video, available for your viewing pleasure on our digital certificate verification page. Each video, comprising an incredible 200 frames, meticulously analyzes the diamond’s colored light return as it sways and shimmers.     ### 6. Scintillation Scintillation, the 6th element in the 8X cut grade evaluation, defines the sparkle factor of diamond light return assessment. It's those dazzling bright flashes that emerge as light reflects from every facet while the diamond moves. However, beware: an improper cut, low clarity, or poor polish can all diminish scintillation quality. At GCAL by Sarine, we utilize Gemprint® technology to directly measure Scintillation. A single beam of light is directed into the diamond's center, measuring the number of light points emanating as the diamond is rotated and tilted in 9 different positions. Scintillation images undergo meticulous evaluation against a square background, then are cropped to the diamond's shape outline on the certificate. Explore the full scan on our website's certificate verification page to ensure your diamonds shine with unparalleled brilliance.   ## Optical Excellence Last but certainly not least, the final two 8X grading factors meticulously examine the craftsmanship and precise alignment of crown and pavilion facets, harmonizing to achieve aesthetic perfection. ### 7. Optical Symmetry Optical Symmetry focuses on the precise alignment of a diamond’s facets. This symmetry is visualized using our proprietary 5-angle reflector, developed by the Diamond Profile Laboratory in 1997 and exclusively used by GCAL since 2004. The light return pattern, as shown in these images, reveals the perfection of facet alignment. Any deviations in angles appear as asymmetric patterns. As in nature and art, symmetry in diamonds represents true craftsmanship and harmony. Our Optical Symmetry Analysis image highlights the beauty of consistent angles and facet alignment, making each diamond a masterpiece of precision. ![8X No7 Optical Symmetry (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/8X%20No7%20Optical%20Symmetry%20(1).jpg?width=1200&length=1200&name=8X%20No7%20Optical%20Symmetry%20(1).jpg) ![Optical Symmetry_Slide1_Fail (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Optical%20Symmetry_Slide1_Fail%20(1).jpg?width=1200&length=1200&name=Optical%20Symmetry_Slide1_Fail%20(1).jpg) ![Optical Symmetry_Slide2_Fail (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Optical%20Symmetry_Slide2_Fail%20(1).jpg?width=1200&length=1200&name=Optical%20Symmetry_Slide2_Fail%20(1).jpg) ![Optical Symmetry_Slide3_Fail (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Optical%20Symmetry_Slide3_Fail%20(1).jpg?width=1200&length=1200&name=Optical%20Symmetry_Slide3_Fail%20(1).jpg) ![Optical Symmetry_Slide4_Excellent (1)](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Optical%20Symmetry_Slide4_Excellent%20(1).jpg?width=1200&length=1200&name=Optical%20Symmetry_Slide4_Excellent%20(1).jpg) ### 8. Hearts & Arrows Shape Aesthetics is the eighth characteristic in the 8X cut grade evaluation, focusing on the unique beauty of each diamond shape. For Round Brilliant Cuts, we assess the exquisite Hearts & Arrows (H&A) pattern. Precision facet placement and perfect alignment reveal a stunning display of eight “hearts” from the pavilion view and eight “arrows” from the crown view in special lighting. Unlike other labs, GCAL By Sarine's certificates showcase actual photos of each diamond’s H&A pattern.   ![8X No8 Hearts and Arrows](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/8X%20No8%20Hearts%20and%20Arrows.jpg?width=1200&length=1200&name=8X%20No8%20Hearts%20and%20Arrows.jpg) ![Hearts and Arrows_H&A_Slide4_Fail4](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Hearts%20and%20Arrows_H&A_Slide4_Fail4.jpg?width=1200&length=1200&name=Hearts%20and%20Arrows_H&A_Slide4_Fail4.jpg) ![Hearts and Arrows_H&A_Slide4_Fail2](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Hearts%20and%20Arrows_H&A_Slide4_Fail2.jpg?width=1200&length=1200&name=Hearts%20and%20Arrows_H&A_Slide4_Fail2.jpg) ![Hearts and Arrows_H&A_Slide4_Fail3](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Hearts%20and%20Arrows_H&A_Slide4_Fail3.jpg?width=1200&length=1200&name=Hearts%20and%20Arrows_H&A_Slide4_Fail3.jpg) ![Hearts and Arrows_H&A_Slide4_Fail4](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Hearts%20and%20Arrows_H&A_Slide4_Fail4.jpg?width=1200&length=1200&name=Hearts%20and%20Arrows_H&A_Slide4_Fail4.jpg) ![Hearts and Arrows_H&A_Slide4_Excellent](https://5379636.fs1.hubspotusercontent-na1.net/hub/5379636/hubfs/Hearts%20and%20Arrows_H&A_Slide4_Excellent.jpg?width=1200&length=1200&name=Hearts%20and%20Arrows_H&A_Slide4_Excellent.jpg) ## In conclusion Mastering the art of diamond cut grade involves a meticulous and scientific process that examines various factors, from physical excellence to light performance. By understanding these eight factors, you gain insight into what makes a diamond truly exceptional. Whether you're a diamond enthusiast or an industry professional, this knowledge empowers you to appreciate and select diamonds with confidence. Stay ahead in the world of diamonds! Subscribe to our blog for the latest updates on diamonds, cutting-edge diamond technology, and industry insights. Don’t miss out—join our community now! ![diamond lab](https://blog.sarine.com/hs-fs/hubfs/diamond%20lab.jpg?width=450&height=450&name=diamond%20lab.jpg)   --- ### MORE FROM THE DIAMOND BLOG ![25 years of Setting the Standard](https://blog.sarine.com/hs-fs/hubfs/blog%20GCAL.jpg?width=310&name=blog%20GCAL.jpg) #### 25 years of Setting the Standard 17 June 2026 [0 Comments](https://blog.sarine.com/gcal-25-years?hsLang=en) - - ![The 2nd Generation of Automated Diamond Color Grading](https://blog.sarine.com/hs-fs/hubfs/2026%20blog%20colors.jpg?width=310&name=2026%20blog%20colors.jpg) #### The 2nd Generation of Automated Diamond Color Grading 30 March 2026 We are often asked: when did Sarine launch AI-based grading? With the AI boom of recent years, many are surprised to learn that AI-driven cut grading began as early as 1992 with the introduction of Sarine’s DiaMension® - the first software to.\[...\] [0 Comments](https://blog.sarine.com/the-2nd-generation-of-ai-based-sarine-color-grading?hsLang=en) - - ![Shape Is Style, Cut Is Everything.](https://blog.sarine.com/hs-fs/hubfs/2025%20blog%208x_0000_Layer%204%20(1)-1.jpg?width=310&name=2025%20blog%208x_0000_Layer%204%20(1)-1.jpg) #### Shape Is Style, Cut Is Everything. 27 February 2026 Round brilliant remained the sparklers of choice for US consumers, featuring 82% of natural diamond jewellery pieces ( [Natural Diamond Trends 2025 Overview](https://www.naturaldiamonds.com/diamond-reports-natural-diamond-trends-2025/#2)) . Round diamonds are a timeless classic; there is no disputing that. However, 2025 also saw.\[...\] [0 Comments](https://blog.sarine.com/shape-is-style.-cut-is-everything?hsLang=en) - - ![2026 Trends Review: The Year of Mastering the Attention Economy](https://blog.sarine.com/hs-fs/hubfs/2025%20blog%20Trends%202026%20review%2001-1.jpg?width=310&name=2025%20blog%20Trends%202026%20review%2001-1.jpg) #### 2026 Trends Review: The Year of Mastering the Attention Economy 07 January 2026 Our annual trends review explores how the diamond industry can win attention in an age of distraction and retail noise. [0 Comments](https://blog.sarine.com/2026-trends-review-the-year-of-mastering-the-attention-economy?hsLang=en) - - ![Why the Heart and the Tech Must Work Together in the Diamond Sales?](https://blog.sarine.com/hs-fs/hubfs/2025%20Sales%20people%20cover.jpg?width=310&name=2025%20Sales%20people%20cover.jpg) #### Why the Heart and the Tech Must Work Together in the Diamond Sales? 07 October 2025 ## Sales is an incredibly challenging profession. [0 Comments](https://blog.sarine.com/why-the-heart-and-the-tech-must-work-together-in-the-diamond-sales?hsLang=en) - - ![The Restless Diamond Brief: Curiosity, AI, and Bankable Outcomes](https://blog.sarine.com/hs-fs/hubfs/2025%20blog%20Romy%20briefs%20prompts%20cover-1.jpg?width=310&name=2025%20blog%20Romy%20briefs%20prompts%20cover-1.jpg) #### The Restless Diamond Brief: Curiosity, AI, and Bankable Outcomes 07 September 2025 *By Romy Gakh-Baram, Director of Brand and Global Marketing, Sarine* [0 Comments](https://blog.sarine.com/the-restless-diamond-brief-curiosity-ai-and-bankable-outcomes?hsLang=en) - - ![Sarine white logo](https://blog.sarine.com/hubfs/Sarine_April2019%20Theme/Image/sarine_profile-logo-new-white.png) The diamond industry, reimagined ![Map](https://blog.sarine.com/hubfs/Sarine_April2019%20Theme/Image/footer_placeholder-map.png) - Headquarters - africa - americas - asia - europe - australia - Middle east - PRODUCTS - [All Products](https://sarine.com/?product_category=all-products) - [Rough Purchasing](https://sarine.com/?product_category=rough-purchasing) - [Inclusion Scanning](https://sarine.com/?product_category=inclusion-scanning) - [Laser Processing](https://sarine.com/?product_category=laser-processing) - [Cut & Symmetry](https://sarine.com/?product_category=cut-symmetry) - [Light Performance](https://sarine.com/?product_category=light-performance) - [Diamond Imaging](https://sarine.com/?product_category=diamond-imaging) - ABOUT SARINE - [About Sarine](https://sarine.com/about-us/about_sarine/) - [Contact Us](https://sarine.com/contactus/headquarters/) - [Our Core Values](https://sarine.com/about-us/our-core-values/) - [Subsidiaries](https://sarine.com/about-us/subsidiaries/) - [CSR](https://sarine.com/about-us/social-corporate-responsibility/) - [Careers](https://sarine.com/careers/) - NEWS - [Events & Exhibitions](https://sarine.com/about-us/events-exhibitions/) - [Blog](https://blog.sarine.com//) - SUPPORT - [Support Files](https://sarine.com/support/) - [Remote Support](http://download.teamviewer.com/download/TeamViewer_Setup-ckq.exe) - [PC Requirements](https://sarine.com/recommended-computer-requirements/) - INVESTOR RELATIONS - [Corporate Information](http://sarine.listedcompany.com/home.html) - [Financial Information](http://sarine.listedcompany.com/financials.html) - [Newsroom](http://sarine.listedcompany.com/newsroom.html) - [Stock Information](http://sarine.listedcompany.com/stock_fundamentals.html) - [Information Request](http://sarine.listedcompany.com/contact.html) #### follow us - - - Sarine Technologies Ltd. Israel [+972-9-7903500](tel:+972-9-7903500) [israellab@sarine.com](mailto:israellab@sarine.com) Sarin Technologies India Ltd. [+91-226655555](tel:+91226655555) [mumbailab@sarine.com](mailto:mumbailab@sarine.com) Sarine North America Inc. [+1-646-7274286](tel:+16467274286) [NYlab@sarine.com](mailto:NYlab@sarine.com) Sarin Hong Kong Limited [+852-3753-7590](tel:+85237537590) [HKlab@sarine.com](mailto:HKlab@sarine.com) ©2026 Sarine - [Terms of Use](http://sarine.com/terms-of-use/) - [Privacy Policy](http://sarine.com/sarine-website-privacy-policy/) ### 微信扫码 关注有福利 ![wechat_med](https://blog.sarine.com/hs-fs/hubfs/wechat_med.jpg?width=1000&height=1000&name=wechat_med.jpg) ###### Close ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://5379636.fs1.hubspotusercontent-na1.net/hubfs/5379636/Untitled%20design%20(25).mp4", "dateModified" : "2026-04-29T13:38:54.631Z", "duration" : "PT19.944S", "height" : 1080, "name" : "Untitled design (25)", "thumbnailUrl" : "https://api-na1.hubspot.com/filemanager/api/v3/files/thumbnail-redirect/171870783628?portalId=5379636&size=medium", "uploadDate" : "2024-07-02T13:30:44.228Z", "width" : 1080 } ``` ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://5379636.fs1.hubspotusercontent-na1.net/hubfs/5379636/Scintillation%20all%20videos%20(1).mp4", "dateModified" : "2026-04-29T13:38:55.421Z", "duration" : "PT26.21S", "height" : 1080, "name" : "Scintillation all videos (1)", "thumbnailUrl" : "https://api-na1.hubspot.com/filemanager/api/v3/files/thumbnail-redirect/171869663518?portalId=5379636&size=medium", "uploadDate" : "2024-07-02T13:28:58.919Z", "width" : 1080 } ```