Lab-Grown

AGS Labs Resumes Grading of Lab-Grown Diamonds

Lab-GrownAug 04, 2020

AGS Labs Resumes Grading of Lab-Grown Diamonds

It will use the same color and clarity grading scales that are used for natural diamonds but add a special designation.

20200804_AGS-Labs-header.jpg
A sample of AGS Labs’ new Laboratory-Grown Diamond Grading Report
Las Vegas—AGS Laboratories will once again grade lab-grown diamonds, the organization announced Monday. 

The lab stopped offering the service in 2013 due to a lack of demand, Executive Director Jason Quick told National Jeweler. 

Now, as demand for man-made stones has picked up, AGS Labs wanted to take a “fresh approach” to the grading report. 

The new report for lab-grown diamonds is the result of more than a year of research and development to create one that aligns with AGS Labs’ mission of consumer protection and ensures consumers understand what they’re getting, Quick said. 

Unlike GIA, AGS is using the standard color and clarity grading scales for lab-grown diamonds but adding “LG” (for “laboratory-grown”) to the grades.

The system is designed to distinguish the grading from natural diamonds while also providing a basis for comparison, Quick said.

For example, a lab-grown diamond could receive an “LG-D” color grade and an “LG-VS1” clarity grade.

The reports also will contain the following statement: “It is important to note that the color and clarity grades do not reflect the rarity of a laboratory-grown diamond, but rather the quality and consistency of the manufacturing process.”

AGS Labs’ lab-grown diamond grading reports also will offer the standard AGS 0 to 10 cut-grade scale, including the AGS Ideal cut grade, but does not utilize the “LG” designation used for color and clarity.

Additionally, the new report will contain a description of the laboratory-grown growth method used.

“We feel like that is important for the consumer to understand the details behind how the laboratory-grown diamond was created,” Quick said.

It will also offer explanations of the differences between the high pressure-high temperature (HPHT) and chemical vapor deposition (CVD) processes.

A shot of the Only My Diamond platform, which is where AGS Labs’ Laboratory-Grown Diamond Grading Report is housed
A shot of the Only My Diamond platform, which is where AGS Labs’ Laboratory-Grown Diamond Grading Report is housed

AGS Laboratories is starting with a pilot program for the lab-grown diamond reports and will open the service more broadly to the industry later this year. 

The Laboratory-Grown Diamond Grading Report will be in a digital form only to start. 

It’s a component of Only My Diamond for Laboratory-Grown Diamonds, an interactive online tool featuring additional educational information, including a special section on the 4Cs of man-made diamonds.

When asked if AGS Labs would eventually expand to printed reports, Quick said it will “re-evaluate enhancements throughout the pilot program.” 
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Stephen Webster Green Cuprian Tourmaline earrings
SourcingFeb 24, 2025
Colored Stone Market Update: Tracking Industry Trends in Tucson

Declining supply and growing demand persist in the colored gemstone market, presenters from Gemworld said at AGTA GemFair Tucson.

Reena Jumbo It’s a Lobster Clasp Necklace
TrendsFeb 24, 2025
Renna’s Lobster Clasp Looks Like a Claw, Now It's Patented by Law

The designer’s new patent transforms the everyday clasp into her jumbo “Lobster Clasp,” modeled after the look of a crustacean’s claw.

Jewelers Vigilance Committee annual luncheon 2025 logo
Events & AwardsFeb 24, 2025
Bogolo Joy Kenewendo to Speak at Annual JVC Luncheon

Kenewendo, Botswana’s minister of minerals and energy, will discuss the future of diamonds.

national-jeweler_top-image_2.png
Brought to you by
A Diamond ETF is the Way to Reinvigorate Natural Diamond Sales

The jewelry industry faces challenges from lab-grown diamonds. A diamond ETF can restore natural diamonds' value and drive investor demand.

Canada’s Diavik Diamond Mine in warmer months
SourcingFeb 24, 2025
Diavik’s Production Down 17% in 2024

Sales at the Rio Tinto-owned mine also slid by a double-digit percentage, falling 37 percent in a difficult market for diamonds.

Weekly QuizFeb 21, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Jade Ruzzo Tennessee Drop Earrings
CollectionsFeb 21, 2025
Piece of the Week: Jade Ruzzo’s ‘Tennessee’ Oval Drop Earrings

Heidi Gardner, an SNL cast member, wore the smoky quartz earrings on the “SNL50: The Anniversary Special” red carpet on Sunday.

Rough emerald mined by Gemfields
SourcingFeb 21, 2025
Zambia Lifts 15% Export Duty on Gemstones, Metals

The reversal comes less than two months after the Zambian government reinstated the tax in an effort to bring in more money.

Header Image.jpg
Brought to you by
Get Ready for the JA New York Spring Show

This year will feature a new MJSA Showcase and partnership with Piazza Italia.

Jeffrey Cohen, Steven Lagos, Michael Benavente, Monica Elias
MajorsFeb 21, 2025
24 Karat Club of New York Names New President

The organization also announced its newly elected officers and directors.

A polished diamond in tweezers
SourcingFeb 20, 2025
Anglo Writes Down Value of De Beers by $2.9B

As anticipated, Anglo took another impairment charge on the diamond miner and marketer, which saw revenue sink 23 percent in 2024.

The 2.33-carat fancy red “Winston Red” diamond
SourcingFeb 20, 2025
Harry Winston’s Son Donates Fancy Red Diamond to the Smithsonian

Ronald Winston is giving the 2.33-carat “Winston Red” to the Smithsonian, 67 years after his father donated the Hope Diamond.

Kirit Bhansali
SourcingFeb 20, 2025
GJEPC Names New Chairman, Vice Chairman

Kirit Bhansali, a partner in Smital Gems and chairman of India Jewellery Park, will take on the role of chairman.

Alisha Cornett, Nic Faini, Eric Stevens, Seth Shipley
IndependentsFeb 20, 2025
IJO Elects 4 New Board Members

Alisha Cornett, Nic Faini, Eric Stevens, and Seth Shipley have joined the organization’s board of directors for a three-year term.

Brink’s Truck
CrimeFeb 19, 2025
Brink’s to Pay $42M After Admitting to Illegally Transporting Money

The company has to pay the Justice Department and FinCEN for violating the Bank Secrecy Act, the U.S.’s main anti-money laundering law.

The Finsch diamond mine in South Africa
SourcingFeb 19, 2025
Diamond Mining Company CEO Steps Down Amid Sales Slump, Layoffs

Petra Diamonds Ltd. CEO Richard Duffy resigned as the diamond miner reported a 30 percent drop in sales to start its fiscal year.

Emmanuel Raheb
ColumnistsFeb 19, 2025
The Smart Lab: Maximizing Your Jewelry Brand on Pinterest

Pinterest is a potential gold mine for jewelry brands, Emmanuel Raheb writes, provided they follow these five tips.

Cartier LAX Storefront
MajorsFeb 19, 2025
Cartier Opens New Store Inside LAX

The boutique is the French luxury brand’s first airport store on the West Coast.

Swarovski NYC flagship Ariana Grande collab
CollectionsFeb 19, 2025
Swarovski’s NYC Flagship Celebrates Ariana Grande Collab

The store’s facade now features the iconic swan logo and campaign images of the “Wicked” star.

Stock image of loose polished diamonds
Policies & IssuesFeb 18, 2025
New Customs Requirements for Diamond Imports: What We Know

Beginning in April, companies importing diamonds into the United States will have to list the country in which the diamonds were mined.

 Fabergé Animals
AuctionsFeb 18, 2025
A Menagerie of Fabergé Coming to Sotheby’s

Around 30 whimsical Fabergé animal carvings will go up for auction at Sotheby’s Geneva in May.

Celine Assimon, departing CEO of De Beers Jewellers
SourcingFeb 18, 2025
Celine Assimon Stepping Down as CEO of De Beers Jewellers

Assimon will be leaving at the end of February after nearly five years with De Beers.

Tabayer Men’s Oera Collection Selections
CollectionsFeb 18, 2025
Tabayer Debuts Its First Men’s Jewelry Selections

Designs from the brand’s “Oera” collection have been reimagined with modern masculinity in mind.

Navneet montana sapphire
SourcingFeb 14, 2025
Navneet Gems Now Offering Unheated Montana Sapphires

The wholesale collection features material from the Rock Creek mine in a variety of colors.

Theresa Caputo &LIVY jewelry
CollectionsFeb 14, 2025
Carolyn Rafaelian Partners with ‘Long Island Medium’ Star

The “Divinely Guided” collection, created in collaboration with Theresa Caputo, features symbols that celebrate the power of connection.

Lorraine West Diamond Open Heart Ring
CollectionsFeb 14, 2025
Piece of the Week: Lorraine West’s Diamond ‘Open Heart’ Ring

Show some love on Valentine’s Day with this 14-karat yellow gold ring that features pavé diamonds.

Surveillance image of Macy’s jewelry thief
CrimeFeb 13, 2025
Macy’s Employee Foils $1.5M Jewelry Theft

The employee confronted the thief, causing the suspect to flee and leave behind the suitcases full of jewelry.

Namdia rough diamonds
SourcingFeb 13, 2025
Namibian Diamond Co. Suspends CEO, COO After Deadly Heist

Namib Desert Diamonds also put its security manager on leave following last month’s robbery that left one employee dead.

×

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