Grading

GCAL Introduces 8X Cut Grade for Proprietary Cuts

GradingMar 23, 2023

GCAL Introduces 8X Cut Grade for Proprietary Cuts

Patented and specialty cuts now can receive an 8X Proprietary Certificate, which can be customized to include a company’s brand and logo.

20230323_GCAL proprietary cuts.jpg
Introduced for round brilliant diamonds in 2021 before expanding to oval- and princess-cut diamonds, GCAL’s 8X cut grade is now available for patented and specialty cuts, like the shield-cut diamond seen here.
New York—The Gem Certification and Assurance Lab is continuing the rollout of 8X, the new diamond cut grade it introduced in 2021. 

Earlier this month, the New York-based laboratory announced the launch of 8X Proprietary Certificates for patented and specialty cuts. GCAL can customize the certificates to include a company’s brand and logo.

JannPaul Diamonds, a diamond retailer in Singapore known for its innovative cuts, is the first to issue the new certificates, GCAL said. Founded by CEO Paul Hung in 2010, JannPaul holds 10 proprietary diamond patents, including the “White Series Collection.” 

“JannPaul is world renowned for their exacting standards and exceptional patented diamond cuts. It’s an honor they’ve selected GCAL as their grading laboratory,” GCAL Chief Operating Officer Angelo Palmieri said. 

The company has “an amazing ability to design and execute innovative diamond cuts that deserve to be recognized through a multitude of metrics that help consumers appreciate their outstanding precision,” he added.

 Related stories will be right here … 

GCAL introduced 8X as the “Ultimate Diamond Cut Grade,” and first issued 8X certificates to round brilliant-cut diamonds in 2021 before adding oval and princess cuts in 2022. 

The cut grade encompasses eight aspects of evaluation, including both traditional cut analysis methods (polish, symmetry, and proportion analysis) and direct assessment of the actual light performance (including brilliance, fire, scintillation, and optical symmetry). 

Palmieri said the addition of proprietary cuts to the 8X family was a logical next step, considering the growing number of consumers looking for something other than a traditional round brilliant.

“In 2020, and for the first time, the number of fancies coming through the GCAL lab surpassed rounds. And this trend is continuing. This is why we introduced the oval and princess 8X diamonds at JCK last year, and why 8X cushions and radiants are in the works,” he said. “Proprietary cuts are a logical addition to the 8X grading system.” 

“Today, diamonds are being designed and precisely faceted in patterns and shapes we would have once thought unimaginable,” he continued.  

“We have experienced a great deal of interest in 8X cut grading on proprietary-cut diamonds and the stones coming through our lab are nothing short of sensational.” 

For more information about 8X cut grades for proprietary cuts, contact GCAL at 212-869-8985 or via email, awp@gcalusa.com.

The Latest

Charles & Colvard showroom in Morrisville, North Carolina
Lab-GrownMar 06, 2026
Charles & Colvard Files for Bankruptcy, Citing Price Pressures

Increased competition, falling lab-grown diamond and moissanite prices, and the rising cost of gold took a toll on the moissanite maker.

Zome Solara Earrings
CollectionsMar 06, 2026
Zome’s ‘Solara’ Earrings Embody Celestial Beauty

The earrings, our Piece of the Week, feature pink tourmalines as planets orbiting around an aquamarine center set in 18-karat rose gold.

Pomellato’s International Women’s Day “The Price of Freedom” Campaign
MajorsMar 06, 2026
Pomellato’s 2026 IWD Campaign Spotlights Economic Abuse

“The Price of Freedom” campaign video for International Women’s Day confronts the quiet violence of financial control.

TopImageCrop.jpg
Brought to you by
Is This You? Every Jeweler Has This Problem; We Have the Solution.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

Stock image of shipping containers
Policies & IssuesMar 05, 2026
Tariffs to Increase to 15% This Week, Treasury Secretary Says

Also, a federal judge has ordered that companies that paid tariffs implemented under the IEEPA are entitled to refunds.

Weekly QuizMar 05, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Common Era Difficult Women Pandora Pendant, Anne Boleyn Signet Ring, Cleopatra Pendant
CollectionsMar 05, 2026
Common Era Honors ‘Difficult Women’ in Collection

The ever-growing collection, which just expanded with the addition of Olga of Kyiv, features cameos of 12 women from history.

Diamond engagement rings by designer Lorraine West
TrendsMar 05, 2026
Engagement Ring Trends 2026: What’s In, and Why

We asked a jewelry historian, designer, bridal director, and wedding expert what’s trending in engagement rings. Here’s what they said.

dca-laptop.jpg
Brought to you by
DCA Enters a New Chapter in Jewelry Education

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

American Gem Society Conclave 2026 Orlando logo
Events & AwardsMar 05, 2026
AGS Announces Conclave 2026 Speaker Lineup

The annual event will be held in Orlando, Florida, from Sept. 14-17.

Caitríona Balfe on Only Natural Diamonds Spring 2026 Issue Cover
TrendsMar 05, 2026
Caitríona Balfe Fronts Only Natural Diamonds Cover

The “Outlander” star modeled for the digital cover of the magazine’s spring issue, which features a story on her relationship with jewelry.

CIBJO Milan
MajorsMar 05, 2026
Registration Opens for CIBJO Centenary Congress

This year’s annual congress, which will mark the confederation’s 100th anniversary, will take place this fall in Italy.

Michael M Beverly Hills Flagship Interior Rendering
MajorsMar 04, 2026
Michael M Opens First Store

Beverly Hills was chosen as the location for the brand’s first store, designed as a “private residence for modern monarchs.”

Dubai mall
Policies & IssuesMar 04, 2026
Luxury Brands Temporarily Shutter Middle East Stores

Kering, Apple, and other retailers have reportedly temporarily closed stores in the Middle East region in light of the recent conflicts.

Brilliant Earth Beverly Hills showroom
EditorsMar 04, 2026
Q&A: Brilliant Earth’s CEO on the New Beverly Hills Store

Beth Gerstein discusses the vibe of the new store, what customers want when fine jewelry shopping today, and the details of “Date Night.”

JIS Miami Spring 2026
Events & AwardsMar 04, 2026
JIS Miami Spring Show to Feature New Gifts Pavilion, Pop-Up Trends Talks

Nearly half of buyers are prioritizing silver and fashion collections this season, organizers said.

Spinelli Kilcollin Live Now. Polish Later. Campaign
TrendsMar 04, 2026
Spinelli Kilcollin Rides Free In Year of the Horse Campaign

The “Live Now. Polish Later.” campaign features equestrians wearing the brand’s jewels while galloping across the icy plains of Kazakhstan.

Jennifer Ashworth
MajorsMar 04, 2026
LeachGarner Names New Brand Director

The precious metals provider has promoted Jennifer Ashworth to the role.

Johnny Nelson Wins David Yurman Gem Award Grant Graphic
Events & AwardsMar 03, 2026
Johnny Nelson Wins David Yurman Gem Awards Grant

Nelson will be honored as the inaugural grant winner at the Gem Awards gala on March 13.

New Forevermark store in India
SourcingMar 03, 2026
7 Trends That Could Define the Diamond Industry’s Future

Experts from India weigh in the politics, policies, and market dynamics for diamantaires to monitor in 2026 and beyond.

Gannon & Scott and Metalor Technologies employees
MajorsMar 03, 2026
Swiss Refiner Completes Acquisition of Gannon & Scott

The American precious metals refiner’s day-to-day operations remain the same post-acquisition.

Isabel Delgado aquamarine earrings
TrendsMar 03, 2026
Amanda’s Style File: Aquatopia

These aquamarine jewels channel the calming energy of the March birthstone.

AGTA Innovative Design Award
Events & AwardsMar 03, 2026
AGTA Adds Another New Category for Spectrum

The “Innovative Design” category and award will debut in the Spectrum division of this year’s AGTA Spectrum & Cutting Edge Awards.

Nena Mensah and Sofia Carson at 2026 Actor Awards
EditorsMar 02, 2026
Jewelry at the Actor Awards: Reimagining Hollywood Glamour

Diamond jewelry was the star of the event formerly known as the SAG Awards.

Person pushing a shopping cart
SurveysMar 02, 2026
Consumer Confidence Edges Up in February

Consumers were somewhat less worried about the future, though concerns about rising prices and politics remained.

Rebecca Foerster
Events & AwardsMar 02, 2026
JVC to Honor Rebecca Foerster at Annual Luncheon

Foerster is this year’s Stanley Schechter Award recipient.

JFC facets 2026
Events & AwardsMar 02, 2026
JFC Names 2026 ‘Facets’ Honorees

Sponsorships and tickets to the annual fundraising event, set for May 31, are available now.

Faustino Alamo Dominguez and his son, Luis Angel Alamo, of Joyeria Angelo’s in Chicago
CrimeFeb 27, 2026
Man Charged in Murders of Father, Son Jewelers in Chicago

Chicago police and members of the U.S. Marshals Service tracked down the 35-year-old suspect earlier this week in St. Louis.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy