The report shows that couples are searching for vintage and antique rings, gold jewelry, pearls, and colorful pieces.
GIA Sees Blue Diamond That’s Synthetic-Natural Composite
The 0.33-carat stone has a very thin layer of CVD-grown Type IIb diamond on top that earned it a grade of fancy blue.
New York--The Gemological Institute of America reports that a mined white diamond with an extremely thin layer of blue lab-grown diamond on top was submitted to its New York laboratory recently.
According to an article published online now and slated for the summer print edition of “Gems & Gemology,” the 0.33-carat stone is a composite of CVD synthetic Type IIb diamond overgrowth on a natural Type Ia.
The lab-grown diamond layer is only 80 microns (0.003 inches) thick, but it’s enough for the diamond to grade as a fancy blue.
Though the GIA said the stone was not submitted as a lab-grown diamond, there were a few things that tipped off researchers.
As the article states, the diamond had both nitrogen and boron defects. Nitrogen defects are the most common defect found in natural diamonds, while boron is the element that gives diamonds a blue tint and is a rare impurity, which is why natural blue diamonds are so few and so valuable.
The GIA said it is “very unusual” to see these two elements together in a single diamond, as essentially what they were looking at was a mixed Type Ia and Type IIb diamond. The last time the GIA reported on one of these being found in nature was nearly 10 years ago, in the spring 2009 edition of “Gems & Gemology.”
Secondly, a detailed analysis conducted using the DiamondView machine showed a yellowish-green fluorescence zone at the top of the crown that had a clearly defined boundary visible along the interface layer on the crown facets.
This, combined with SiV- defects and phosphorescence, indicated to GIA researchers that the top layer was a diamond grown using the chemical vapor deposition (CVD) process.
The bottom of the stone, meanwhile, displayed blue fluorescence but no phosphorescence in the DiamondView and had a strain pattern in the pavilion, both of which are consistent with a stone that is a natural Type Ia diamond.
This is the not the first diamond that’s a synthetic-natural combination.
The GIA noted in its research article that CVD diamond films have been applied to natural diamonds since the 1960s, and the successful addition of CVD-grown diamond layers on top of mined diamonds happened in 1993.
But this is the first synthetic overgrowth on a natural diamond with a fancy color grade that the GIA said it has ever seen.
As the lab put it
That is, apparently, until now.
GIA Director of Research and Development Wuyi Wang, along with New York-based GIA researchers Kyaw Soe Moe, Paul Johnson and Ulrika D’Haenens-Johansson, authored the article.
The Latest
He’s remembered as a “font of passion,” leaving behind a legacy of dedication to his craft and community.
The first one will take place next month during the Jewelers of Louisiana’s and Mississippi Jewelers Association’s conventions.
For over 30 years, JA has advocated for the industry, fought against harmful legislation and backed measures that help jewelry businesses.
The redesigned boutique features interactive displays and a workshop space for hands-on learning about watchmaking.
There is a willingness to comply with new government-mandated regulations, with an insistence that they should be practical and realistic.
A combination of factors is driving growth in the industry despite the precipitous drop in prices across the board.
Ho Brothers offers scalable solutions for the future of custom jewelry.
The zone’s modernization will enhance and increase India’s jewelry manufacturing capabilities while aiding small and mid-sized businesses.
By the end of this year, SRK’s diamond manufacturing complexes will achieve net zero emissions, one of an impressive array of achievements.
The company plans to invest $25 million in marketing initiatives to boost awareness around its namesake and licensed brands.
Optimism about the current state of the economy was offset by anxiety around inflation and the political environment.
The former WJA executive director is MFM’s new managing director.
DDG encourages retailers to educate customers on the positive impact of purchasing natural diamonds.
Highlighting the most iconic Tiffany collections, it’s inspired by the company’s late window designer, Gene Moore.
Jen Cullen Williams and Duvall O’Steen explore how jewelers can save time and money by using AI to analyze engagement and create content.
The retailer previously turned down an $8.4 billion offer in 2018.
The Florida store’s owner Miguel Gonzalez is retiring.
The brand also plans to expand its retail footprint from 138 to 200 stores over the next three years.
One is reserved for a NAJA member, the other for a non-member.
Longtime employees Carie Lehrke and Megan Mattice have received promotions.
Three guests joined National Jeweler and Jewelers of America to discuss trending time periods, spotting reproductions, and more.
Chris Clipper and Robert Lepere join the company with 50 years of combined experience.
The trendy, metallic earrings wink at classic spring colors.
JSA said a man and woman pulled the safe out of an Oakland jewelry store but couldn’t quite get it into their van.
The miner’s March auction generated $19 million.
Helen McCluskey will succeed H. Todd Stitzer when he meets his 12-year term limit in June.