PodcastsJan 12, 2026
The latest poscasttest
SourcingJan 31, 2018
Washington, D.C. Company Grows 6-Carat Diamond
WD Lab Grown Diamonds says it’s the largest round diamond ever produced using CVD technology.
This 6-carat round diamond was created using the chemical vapor deposition (CVD) process.
Washington--A lab-grown diamond company based in the United States says it just grew a 6-carat diamond using the chemical vapor deposition (CVD) process.
WD Lab Grown Diamonds, whose facility is located just outside Washington D.C., recently created the 6-carat round stones, which it claims is the largest round diamond on record to be produced using CVD technology.
Back in 2016, the Gemological Institute examined a 5.19-carat cushion modified brilliant grown using the CVD process, noting that, “Chemical vapor deposition (CVD) technology has accelerated over the last several years, and the rapidly improving techniques have produced large, high-quality near-colorless and colorless synthetic diamonds.”
Around that same time, the lab also examined a 10.08-carat man-made diamond, though that stone was created using the high-pressure, high-temperature (HPHT) process and was blue in color, not white.
WD Diamonds said it took a few months to grow the 6-carat round, which sold less than a month after it began showing it to buyers.
The company, which creates lab-grown diamonds both for the diamond trade and for industrial and scientific purposes, said it is now concentrating on producing diamonds above 6 carats to sell to its retailers.
Clive Hill, founder and chairman at WD Lab Grown Diamonds, said, “Our patented technology and industry-leading engineers consistently provide top-quality results that only the latest innovation can offer.”
WD Diamonds was founded in 2008 and is the exclusive licensee of the single-crystal CVD diamond growth technology developed by The Carnegie Institution of Washington.
Editors' Picks
Sponsored by
More on Sourcing
The Latest
Weekly QuizOct 03, 2024
This Week’s QuizTest your jewelry news knowledge by answering these questions.
PodcastsJan 12, 2026
Introducing My Next Question, the PodcastA monthly podcast series for jewelry professionals
Brought to you by
Navigating Cybersecurity: Essential Guidance for JewelersFrom protecting customer data to safeguarding inventory records, it's crucial to learn how to tackle cybersecurity challenges.
PodcastsNov 27, 2025
Test Podcast With VideoTest Podcast With Video. New interview with Ada Lovelace.
PodcastsNov 25, 2025
Test New Podcast PostAbstract for tests. New Podcast interview with John Lennon, Jimi Hendrix and Jim Morison.
ColumnistsOct 09, 2024
Peter Smith: 7 Things to Know When Selling LuxuryAhead of the holiday season, Smith delves into the often subconscious reasons people buy luxury products for themselves or their loved ones.
AuctionsOct 09, 2024
Rolex Worn on Apollo 14 Mission Up for SaleThe GMT-Master “Pepsi” belonging to astronaut Edgar Mitchell is a standout in RR Auction’s online “Space Auction,” going on now.
MajorsOct 09, 2024
New Simon Campaign Invites Gen Z to ‘Meet Me At The Mall’The ads celebrate the mall culture of the ‘80s and ‘90s.
MajorsOct 09, 2024
PGI Launches New Virtual Sales TrainingRetail sales associates can access the video series on mobile to refresh their selling skills.
Policies & IssuesOct 09, 2024
GJNRF: Reaching Out, Rebuilding Futures For 25 years, India’s Gem & Jewellery National Relief Foundation has provided aid in the wake of war, natural disasters, and global crises.
AuctionsOct 08, 2024
Sotheby’s Selling Jewelry That Belonged to a Bulgarian TsarThe November auction will feature a collection of jewels owned by Ferdinand I, the first king of modern Bulgaria, and his family.
SurveysOct 08, 2024
What to Know About Online Shopping This Holiday SeasonDeloitte and Adobe Analytics shared their insights on the season, from the retail sales forecast to the role of generative AI.
CollectionsOct 08, 2024
Sylvie Adds New Men’s BandsThe Texas-based jeweler collaborated with luxury clothing brand Uncommon Man on men’s bands designed with European influences.
SourcingOct 07, 2024
Rio Tinto to Offer 76 Diamonds in 2024 Beyond Rare Tender The sales event, in its second year, features a selection of rare diamonds from the miner’s Argyle and Diavik diamond mines.
CollectionsOct 07, 2024
Olympian Kristi Yamaguchi Partners With Heller Jewelers on New CollectionA portion of the proceeds from the “Always Dream” collection will go to Yamaguchi's foundation, supporting early childhood literacy.
SurveysOct 07, 2024
Hill & Co.’s New ‘Business of Jewelry Report’ Is OutThe first in what is slated to be a series of in-depth reports from the consulting company, it focuses on shortening supply chains.
WatchesOct 04, 2024
Watches of Switzerland Clocks Another Acquisition—HodinkeeThe company said Benjamin Clymer will return to his role as head of the watch news website, which will maintain editorial independence.
