Lab-Grown

A Secure Way to Buy and Sell Laboratory-Grown Diamonds

Brought to you by

A Secure Way to Buy and Sell Laboratory-Grown Diamonds

Lab-grown diamonds are growing in popularity, so be sure you and your staff are prepared to speak to the quality of those you come across.

LGDR_Report_Image_1872x1052_Top Image.png

Brought To You By GIA


Laboratory-grown diamonds are increasingly available in greater quantities, higher quality and new colors at price points that many find attractive. It is no wonder then that laboratory-grown diamonds are a growing presence in the marketplace. 
 
Laboratory-grown diamonds are appealing options for consumers looking for affordable, attractive alternatives to natural diamonds. They make it easier for consumers to size up or go higher in 4Cs quality. They also come in vibrant colors such as pink, blue, or green that are incredibly rare in natural diamonds. Finally, they are often the go-to for consumers who are looking for diamonds that are ethically sourced or created in an environmentally-friendly way. 
Why are GIA Laboratory-Grown Diamond Reports Important? 
Are you and your staff prepared to identify or to recognize the quality of laboratory-grown diamonds that you come across? Virtually impossible to separate from natural diamonds with the unaided eye, laboratory-grown diamonds require testing to determine their identity. We at GIA want to ensure that both you and your clients always know the identity and quality of what’s being purchased. That is why we updated our reports for laboratory-grown diamonds in 2020. The GIA Laboratory-Grown Diamond Report (LGDR) makes it easier than ever before for consumers to know the identity of their diamonds as well as fully understand their quality. 
 
Diamonds_Image 2.jpg
Key Features of the Updated LGDR
When a laboratory-grown diamond is submitted to our laboratory, it is first examined to determine if it is natural or laboratory-grown. Then, GIA graders evaluate it using the 4Cs, a standard of evaluation created by GIA and implemented all over the world. Our graders evaluate each laboratory-grown diamond with the same meticulous care as natural diamonds. The GIA Laboratory-Grown Diamond Report provides detailed color and clarity specifications, honing in with greater insight than ever before and allowing consumers to make crystal clear decisions. The report also includes a plot of the stone’s clarity characteristics.
 
Using spectroscopy and other advanced testing methods, GIA graders can determine how a diamond was grown—through the high-pressure, high-temperature (HPHT) method or the chemical vapor deposition (CVD) method. This information is then included in the report. In addition to stating a diamond’s growth method, the Laboratory-Grown Diamond Report also states whether any post-growth treatments were detected. Diamonds, whether laboratory-grown or natural, can be treated using the HPHT method to acquire a fancy color, such as pink, blue, green or yellow or to improve the color of a D-to-Z diamond. GIA’s LGDR lets consumers know whether their diamonds have been treated in this way to enhance their color.
 
A Digital Report
Our updated Laboratory-Grown Diamond Report is entirely digital. Through the GIA Report Check service on GIA.edu, diamond information can be viewed anytime, anywhere at consumers’ convenience in a secure way. Digital reports improve sustainability and security by storing data securely and reducing the paper and energy needed to produce and transport reports each year. As we continue to advance in technology and consumer protection, we promise that no matter the medium – paper or digital – we will continue to deliver vital gem data and knowledge to the clients that need them.
 
LGDRCases_Image 3.jpg
Why GIA?
Determining diamond identity, growth method and treatment require scientific expertise. At GIA, we are uniquely positioned to provide this information due to our over 60 years of diamond research, the knowledge we have gained from grading millions of diamonds every year, and the information we collect from growing CVD diamonds in-house for research purposes. Grown by science, laboratory-grown diamonds deserve the expertise of scientists. Our new Laboratory-Grown Diamond Report serves up the brilliance you expect from the institute you trust. Knowing the identity and quality of the diamonds that you purchase and sell can help you confidently add laboratory-grown diamond inventory to your store and help add sparkle to your clients’ shopping bags. 

The Latest

Anza Gems gemstones
SourcingJan 28, 2026
Ethical Gem Fair to Debut Designer Showcase in Tucson

The new addition will feature finished jewelry created using “consciously sourced” gemstones.

National Jeweler columnist and jewelry sales expert Peter Smith
ColumnistsJan 28, 2026
Peter Smith: Setting the Next Generation Up for Success

In his new column, Smith advises playing to your successor's strengths and resisting the urge to become a backseat driver.

Hand holding shopping bags
SurveysJan 28, 2026
Consumer Confidence Falls Below Pandemic Lows in January

The index fell to its lowest level since May 2014 amid concerns about the present and the future.

MJSA Apprenticeship Guide
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench Jewelers

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

Foundrae Aspen Store
IndependentsJan 28, 2026
Foundrae Heads to Aspen for Latest Store Opening

The new store in Aspen, Colorado, takes inspiration from a stately library for its intimate yet elevated interior design.

Weekly QuizJan 22, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Bulgari Gioco di Forme e Colori watch and brooch
FinancialsJan 28, 2026
Tiffany & Co., Bulgari Sales Resilient as LVMH’s 2025 Sales Slip

The brands’ high jewelry collections performed especially well last year despite a challenging environment.

GemFair x DBL Toi et Moi Ring
CollectionsJan 27, 2026
De Beers London, GemFair Debut New Collection Highlighting Artisanal Diamonds

The collection marks the first time GemFair’s artisanal diamonds will be brought directly to consumers.

JamAlert 1872x1052.png
Brought to you by
How Jewelers Can Fight Back Against Cell Jammers

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Montana sapphire
SourcingJan 27, 2026
GemGuide Launches Pricing for Montana Sapphires

The initial charts are for blue, teal, and green material, each grouped into three charts categorized as good, fine, and extra fine.

Clientbook
TechnologyJan 27, 2026
Clientbook Launches Appointment Booking Tool

The new tool can assign the appropriate associate based on the client or appointment type and automate personalized text message follow-ups.

Columbia Gem House celestial shapes
SourcingJan 26, 2026
Tucson Preview 2026: Earthy Tones and Innovative Shapes

Buyers are expected to gravitate toward gemstones that have a little something special, just like last year.

Diamond center in Saurimo, Angola
SourcingJan 26, 2026
Angolan Diamond Cos. Join NDC as Rio Tinto, Murowa Exit

Endiama and Sodiam will contribute money to the marketing of natural diamonds as new members of the Natural Diamond Council.

Francesca’s boutique
MajorsJan 26, 2026
Francesca’s To Close All Stores

The retailer operates more than 450 boutiques across 45 states, according to its website.

Thomas Davis, Monalisa DePina, Jamie Batiste, Namwezi Nicole Batumike, Lavina Hunt-Lewis
MajorsJan 26, 2026
BIJC Names 5 New Board Members

The new members’ skills span communications, business development, advocacy, and industry leadership.

Tiffany & Co. Celebrating Love Stories Since 1837 Campaign
CollectionsJan 26, 2026
Tiffany & Co. Celebrates 189 Years of Love Stories

The jeweler’s 2026 Valentine’s Day campaign, “Celebrating Love Stories Since 1837,” includes a short firm starring actress Adria Arjona.

DCA colored gemstone course
GradingJan 26, 2026
DCA Updates Colored Gemstone Course

The new features include interactive flashcards and scenario-based roleplay with AI tools.

Deutsch & Deutsch jewelers team
MajorsJan 23, 2026
Watches of Switzerland Acquires 4-Store Jewelry Chain in Texas

Family-owned jewelry and watch retailer Deutsch & Deutsch has stores in El Paso, Laredo, McAllen, and Victoria.

Baume & Mercier Riviera 10812 pink watch
WatchesJan 23, 2026
Damiani Group to Acquire Baume & Mercier

The Italian luxury company purchased the nearly 200-year-old Swiss watch brand from Richemont.

Martin Katz snowflake earrings
TrendsJan 23, 2026
Martin Katz’s Earrings Call to Mind Wintry Weather

Micro-set with hundreds of diamonds, these snowflake earrings recreate “winter’s most elegant silhouette,” and are our Piece of the Week.

Ella Blum
MajorsJan 23, 2026
Rembrandt Charms Names New Director of Creative, Brand Strategy

Ella Blum was appointed to the newly created role.

National-Jeweler_1872x1502_B copy.png
Supplier BulletinJan 22, 2026
The Rise of Centralized Sourcing in the Colored Gemstone Market

Sponsored by RapNet

Lugano Diamonds Greenwich Connecticut store
MajorsJan 22, 2026
Lugano Diamonds Finds a Buyer

Investment firm Enhanced Retail Funding, a division of Gordon Brothers, was the successful bidder.

A Diamond Is Forever book
SourcingJan 22, 2026
De Beers To Release ‘A Diamond Is Forever’ Book

It explores the history of the iconic tagline and the company’s strategy to redefine the role of diamonds in society.

Sindhu Culas
MajorsJan 22, 2026
Swarovski Appoints New North America President

Retail veteran Sindhu Culas has stepped into the role.

Taylor Burgess
MajorsJan 22, 2026
Stuller Names New Chief Merchandising, Marketing, Sales Officer

Taylor Burgess, who has been at Stuller since 2013, was promoted to the newly created role.

My Next Question podcast with Sherry Smith and Edahn Golan
PodcastsJan 21, 2026
Episode 1: High Gold Prices, the Diamond Dilemma, & What’s Next

Was 2025 a good year for jewelers? Did lab-grown diamonds outsell natural? Find out on the first episode of the “My Next Question” podcast.

Jules Kim of Bijules, Sophie Howard of By Pariah, Jade Ruzzo, Joy Haugaard of Lionheart, Vanessa Fernández of Vanessa Fernández Studio, Hiba Husayni of Zahn-Z
EditorsJan 21, 2026
6 Jewelry Designers Poised to Have a Breakout Year in 2026

Whether you recognize their jewels or are just discovering them now, these designers’ talent and vision make them ones to watch this year.

×

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