Lab-Grown

35-Carat Lab-Grown Diamond Going on Display in Vegas

Lab-GrownJun 01, 2023

35-Carat Lab-Grown Diamond Going on Display in Vegas

Created by Maitri Lab-Grown Diamonds and graded by IGI, it’s slightly bigger than the record-setting lab-grown diamond GIA just examined.

35-carat lab-grown diamond created by Maitri
It took about 75 days to form this 35-carat, H color, SI1 clarity lab-grown diamond. It measures 23.37 x 15.24 x 9.06 mm. (Photo courtesy of International Gemological Institute)
Las Vegas—Attendees at JCK Las Vegas show will be able to see a 35-carat lab-grown diamond, a stone that’s just slightly larger than the record-setting lab grown-diamond reported on just last month.

Maitri Lab-Grown Diamonds created the emerald-cut, Type IIa stone using the chemical vapor deposition (CVD) process. The company, which has offices in Surat, India, and New York, said it took approximately 1,800 hours (75 days) to grow the diamond. 

The International Gemological Institute graded it as H color, SI1 clarity. 

IGI said the 35-carat stone is the largest polished lab-grown diamond to date, topping the 34.59-carat diamond the Gemological Institute of America detailed in a research note published in early May.  

“IGI is proud to certify new benchmarks like this exceptional lab-grown diamond from Maitri,” IGI North America President Avi Levy said. “The increasing sophistication and quality of achievements we’re seeing from the top producers are remarkable.”

The diamond will be on display at Maitri’s booth at JCK, 8123. 

 Related stories will be right here … 

The 2023 JCK show in Las Vegas kicks off Friday.

At the jewelry trade show, IGI will be participating in two “JCK Talks” education sessions on lab-grown diamonds.

“Lab-Grown 101” with Levy and IGI Senior Director of Education John Pollard is scheduled for Thursday from 5-5:45 p.m. in the Venetian Expo, Level 1.

“Lab-Grown Diamond Updates” is scheduled for Saturday from 10-10:45 a.m. on the Showcase Stage, Venetian Expo, Level 2.

Levy will be joined by JCK News Director Rob Bates, industry analyst Edahn Golan, and Joanna Park-Tonks, president of the International Grown Diamond Association (IGDA). 

IGI also will be providing onsite diamond screening and grading services at JCK, booth 8055, and hosting daily happy hours starting at 4 p.m. at booth 12037 in the Design Lounge.

JCK Las Vegas 2023 continues through Monday.  

The Latest

Cultus Artem River of Heaven Necklace
CollectionsMay 29, 2026
Cultus Artem’s Necklace Is the Oasis in Las Vegas’ Desert

The “River of Heaven” necklace, our Piece of the Week debuting at Couture, combines 26 salt and pepper diamonds spaced by Tahitian pearls.

Sean Dunn, Amy Greenberg, Elise Greenberg, Coleman Clark, Mitchell Clark
IndependentsMay 29, 2026
Meet the 2026 Retailer Hall of Fame Inductees

This year’s inductees include second-, third-, and fourth-generation jewelers.

Jesse Itzler
Events & AwardsMay 28, 2026
JCK Announces Jesse Itzler as 2026 Keynote Speaker

The author, speaker, and entrepreneur will give his presentation, “Spiritual Billionaire,” on Saturday morning.

PG-05-SHOT-2-LUCIDA.033 1.png
Brought to you by
All Eyes on Gold Prices. Alternatives to Look For. And What to BEWARE of in Vegas

As gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.

JCK Rocks Nelly Graphic
Events & AwardsMay 28, 2026
JCK Rocks To Ride With Nelly

Three-time Grammy award-winning artist Nelly is set to perform at the annual event at Tao Beach on Sunday night.

Weekly QuizMay 28, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
A screen shot of The Clear Cut's website
MajorsMay 28, 2026
Signet Jewelers to Buy The Clear Cut

Signet will integrate the online-only, natural diamond-focused jeweler into Blue Nile, which it wants to position as a higher-end retailer.

Itä Aguaviva Tassel Pendant, Ashaha Anzar Cuff, Cultus Artem Quetzal Ring
CollectionsMay 28, 2026
Meet The 17 Newcomers to Couture’s Design Atelier

These up-and-coming jewelry brands are bringing their distinct aesthetic and unique point-of-view to the Design Atelier for the first time.

1872x1052-NextGem-2026-National-Jeweler-Advertorial.jpg
Brought to you by
How Modern Training Is Becoming a Competitive Advantage for Jewelry Retailers

With the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.

GCAL 8x Cushion Cut diamond
GradingMay 28, 2026
GCAL By Sarine Launches 8X Cushion Cut

The lab’s proprietary diamond cut grade has been expanded to include the popular fancy shape.

Stock image of police cars with their lights on
Events & AwardsMay 27, 2026
5 Security Tips for Las Vegas Jewelry Market Week 2026

This year, it’s what could happen outside of show hours that worries JSA Executive Vice President Scott Guginsky.

Smart Age Solutions CEO and National Jeweler columnist Emmanuel Raheb
ColumnistsMay 27, 2026
What Jewelers Can Learn From Luxury Fashion’s Digital Playbook

High-end fashion houses know how to emotionally connect with customers online. Retail jewelers should take note, Emmanuel Raheb writes.

Couture The Iridescence designers Aziza-Abdullah Nicole, Cindy Liebe, Danyell Roscoe, Jessica Liu, Marie Helena from Rebel Jewelry, Julia de Souza, and Xiao Wang
Events & AwardsMay 27, 2026
Couture’s ‘The Iridescence’ Will Showcase 7 Emerging Jewelry Designers

The designers are the third cohort of mentees from the show’s Belonging @ Couture mentorship program.

National Jeweler columnist Sherry Smith, partner at The Retail Smiths
ColumnistsMay 26, 2026
The Key Mindset for Better Trade Show Buying

Buying discipline at trade shows starts with clarity about your inventory levels, Smith writes.

JCK Talks panel on stage
Events & AwardsMay 26, 2026
12 JCK Talks Sessions to Add to Your Las Vegas Schedule

The trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.

CBG Curated Designer Project Logo
Events & AwardsMay 26, 2026
CBG Brings Its Curated Designer Project to Las Vegas Show

The Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.

Walters Faith
TrendsMay 26, 2026
Amanda’s Style File: A Cooldown Is Coming

Bring a cool tone to your summer jewelry with these white metal pieces.

Shot of attendees at a JA New York jewelry trade show
Events & AwardsMay 22, 2026
Instore Buys JA New York Show

The deal closed this week, which means Instore will produce the JA NY show slated to take place this fall.

Buccellati Waikiki gold and diamond earrings
FinancialsMay 22, 2026
Richemont’s Jewelry Brands Lead the Charge in Q4

The company’s jewelry sales were up in Q4 and the fiscal year, with Richemont raising prices in part because of the cost of gold.

Leigh Maxwell Bauble Earrings
CollectionsMay 22, 2026
Leigh Maxwell Celebrates 5 Years at Couture With ‘Bauble’ Collection

The “Bauble” capsule collection of colorful one-of-a-kinds includes our Piece of the Week, the “Bauble” earrings, featuring rose zircon.

Stuller 2026-2027 packaging and display catalog
MajorsMay 22, 2026
Stuller’s New Packaging, Display Catalog Is Out

The updated catalog has a newly dedicated section for gift wrapping.

My Next Question, Episode 5: Amanda Gizzi, Michelle Graff, Frank Everett
PodcastsMay 21, 2026
Episode 5: Sotheby’s Frank Everett Puts the Auction Market in Perspective

Everett covers colored stones’ surging popularity, the mellow return of the “Mellon Blue,” and his “The Devil Wears Prada” doppelgänger.

Springer’s Jewelers new flagship rendering
IndependentsMay 21, 2026
Springer’s Jewelers’ New Flagship Will Serve Next-Gen Luxury Shoppers

Fourth-generation CEO Lilly Mullen wants to emphasize experience, connection, and personalized service.

Nina Pugliese
Events & AwardsMay 21, 2026
JA Announces Nina Pugliese Memorial Scholarship

The new award, created in partnership with Henne Jewelers, honors the late designer’s legacy through supporting jewelry education.

WFDB International Summit
SourcingMay 21, 2026
Botswana, Angola Join WFDB

The addition of the diamond-producing countries as nation affiliated members broadens the federation’s global representation, WFDB said.

Jewelry scam flyer and police officer handing flyer to elderly man
CrimeMay 20, 2026
NYPD Warns of Jewelry Swap Scams Targeting Seniors

The NYPD is warning elderly New Yorkers to keep their jewelry hidden when walking outside to avoid being a target.

New Adornment & Theory jewelry store in West Town, Chicago
IndependentsMay 20, 2026
Adornment & Theory’s New Store Feels Like Home

Designer Viviana Langhoff has realized her dream of owning a space for her Chicago jewelry store that looks and feels like her brand.

Couture Show Logo
Events & AwardsMay 20, 2026
Here Is Couture’s 2026 Education Lineup

The sessions will run from Friday, May 29, to Sunday, May 31, with one being a live taping of an episode of Couture’s podcast.

×

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