IndependentsJan 03, 2025
Kelly Newton, Shipley Award Winner and Devoted Family Man, Dies at 74Newton owned and operated Newton’s Jewelers in Fort Smith, Arkansas, and is remembered for being positive, honest, and loving.
SourcingApr 01, 2016
GIA: More Large Lab-Grown Diamonds Likely Are Coming
The lab’s Tom Moses and Wuyi Wang reached this conclusion after being granted permission to visit a diamond-growing factory in China.
A factory in China is producing a large number of colorless, gem-quality diamonds grown using the high-pressure, high-temperature (HPHT) process. The GIA said these crystals have typical cuboctahedral morphology and weigh up to 3.5 carats. (Photo used with permission of the GIA, credit Jianxin (Jae) Liao.)
Carlsbad, Calif.--The Gemological Institute of America said it expects even more large lab-grown diamonds produced using the high-pressure, high-temperature (HPHT) method to enter the supply pipeline in the future.
In an article slated to appear in the spring 2016 issue of Gems & Gemology and published on GIA.edu now, the GIA’s Tom Moses and Wuyi Wang described their experience at Jinan Zhongwu New Materials Co. Ltd., a diamond-growing factory in Shandong, China. The GIA asked and, subsequently, was granted permission to visit this factory.
There, Moses, the GIA’s chief laboratory and research officer, and Wang, the director of research and development, obtained 50 crystals ranging in size from 0.5 to 1.2 carats. All were readily identifiable as synthetic using the same instrumentation and techniques applied to diamonds submitted to the GIA for grading, the lab said.
The article also noted that the HPHT technology used to grow gem-quality diamonds has improved rapidly in the last few years, and that it’s now being used to produce “many” melee-size diamond as well as large colorless single crystals.
Moses and Wang said in the article that one Russian company, New Diamond Technology, is reportedly able to grow multiple large gem-quality colorless diamond crystals in a single run, and that Jinan Zhongwu New Materials is utilizing similar technology.
New Diamond Technology is the Russian company that produced a 10.02-carat, F color diamond and a 5.03-carat fancy deep blue. An article about the blue diamond also will be in the upcoming edition of Gems & Gemology and was published online beforehand.
While the Jinan’s total production volume remains unclear, “it is undoubtedly significant, and capacity is likely to expand in the near future,” the article states. “This strongly suggests that even more large HPHT synthetic diamonds will be introduced into the jewelry industry.”
A GIA spokeswoman said any further details the GIA is able to share about Jinan Zhongwu New Materials will be included in the spring edition of Gems & Gemology.
Editors' Picks
Sponsored by
More on Sourcing
The Latest
Events & AwardsJan 03, 2025
12 Works by Glenn Lehrer, Paula Crevoshay on Display at Lapidary Museum“Synergy & Symbiosis” is open now through late April at the Lizzadro Museum of Lapidary Art in Oak Brook, Illinois.
CollectionsJan 03, 2025
Piece of the Week: Renna’s ‘Butterfly Caspian’ NecklaceBegin 2025 with a butterfly intaglio symbolizing change and transformation.
Brought to you by
A Diamond Is Forever Celebrates "Forever Present" Holiday CampaignA Diamond is Forever hosted a holiday celebration in honor of their new marketing campaign, ‘Forever Present.’
CrimeJan 02, 2025
Rolex Sale That Went South Led to Murder of Florida Jeweler, Report SaysJeweler Anthony D’Amore was found dead inside his office Dec. 23, marking the fourth jeweler killed on the job in 2024, according to JSA.
Weekly QuizDec 27, 2024
This Week’s QuizTest your jewelry news knowledge by answering these questions.
WatchesJan 02, 2025
Ben Bridge Opens Tudor Boutique in HonoluluThe opening marks Tudor’s first location in Hawaii.
TrendsJan 02, 2025
Amanda’s Style File: New Year, New Jewels Set the tone for 2025 and commemorate the year gone by with glamorous jewelry fit for celebration.
Brought to you by
De Beers Group Launches Holiday Campaign for Natural Diamonds‘Forever Present’ campaign revives the iconic A Diamond is Forever tagline and celebrates the diamond dream.
IndependentsDec 30, 2024
In Memoriam: Jewelry Industry Leaders and Innovators We Lost in 2024From groundbreaking designers to dedicated retailers, National Jeweler pays tribute to the colleagues we bid farewell to this year.
MajorsDec 30, 2024
Saks Global Finalizes Acquisition of Neiman MarcusThe retailer’s portfolio now includes Neiman Marcus, Bergdorf Goodman, Saks Fifth Avenue, and Saks Off 5th.
Events & AwardsDec 30, 2024
Registration Now Open for JIS Spring 2025The jewelry trade show is set for March 9-11 in Miami.
IndependentsDec 30, 2024
MJSA Elects New Board ChairEdward N. DeCristofaro, who served as MJSA’s board chair from 2012 to 2014, is returning to the role.
MajorsDec 27, 2024
Buccellati to Expand Workforce by 500 Employees Over Next Three YearsThe Richemont-owned company is investing in its jewelry production and watchmaking workshops.
Events & AwardsDec 27, 2024
18 Designers Graduate from WJA’s Jewelry Loupe ProjectThe designers participated in a six-month business development and mentorship program to develop and launch their jewelry collections.
MajorsDec 24, 2024
Nordstrom Family, Partner to Take Retailer Private in $6B DealMembers of the founding family have partnered with Mexican retail company El Puerto de Liverpool to acquire Nordstrom.
MajorsDec 24, 2024
Boucheron Bets on Las VegasThe brand has opened its second U.S. location in the Fontainebleau resort and casino.
EditorsDec 24, 2024
The Spectrum Jewels I Want to Find Under the Tree Associate Editor Lauren McLemore highlights pieces from the AGTA Spectrum & Cutting Edge Awards she’d be thrilled to unwrap on Christmas.
SourcingDec 24, 2024
Gemfields to Temporarily Suspend Emerald MiningThe move is one of several cost-cutting measures outlined by the company as it faces a weaker luxury market and other challenges.
IndependentsDec 23, 2024
Philadelphia 76ers’ Tyrese Maxey Stars in The 1916 Company’s New CampaignThe retailer’s “On the Clock” campaign celebrates how time, precision, and purpose come together.
EditorsDec 23, 2024
My Favorite Piece of the Week Jewels of 2024Associate Editor Natalie Francisco chose her 12 favorite Piece of the Week picks from the year gone by.
GradingDec 23, 2024
GIA Adds Filler Identification to Emerald ReportsLab clients have the option to request this addition on their emerald reports.
Events & AwardsDec 20, 2024
Two Participants Complete Inaugural Ella Klein InternshipJamie Dunton and Gabriella Botelho are the first graduates of the program, created by the WJA Foundation and Julius Klein Diamonds.
CollectionsDec 20, 2024
Piece of the Week: Retrouvaí’s Ring for CharityIn the spirit of giving, Retrouvaí will donate $4,000 from the sale of this ring to the Los Angeles Regional Food Bank.
IndependentsDec 19, 2024
Michigan’s DeVries Jewelers Unveils New Location in Time for the HolidaysCo-owner Dan DeVries shared what it’s like moving into a space triple the size of its old store and how it feels to be a “real jeweler” now.
CollectionsDec 19, 2024
State Property Transforms Spain’s Generalife Gardens into JewelryAlong with the latest “Gardens” collection, the brand has released limited-edition designs offering more indulgent pieces.
CrimeDec 19, 2024
Alleged Jewelry Thieves Attempt Rowboat EscapeThe man and woman are accused of stealing jewelry from a shipping container then trying to flee by paddling a small boat out into a bay.
SourcingDec 19, 2024
The Second-Largest Diamond Ever Found Now Has a Name The 2,488-carat diamond recovered from a mine in Botswana has been dubbed “Motswedi” while its 1,094-carat sibling is “Seriti.”
