The report shows that couples are searching for vintage and antique rings, gold jewelry, pearls, and colorful pieces.
GIA Spots ‘Green’ Diamond with Fake Coloring
Researchers said the stone represented a “significant attempt to artificially reproduce the features seen on natural green diamonds.”
Carlsbad, Calif.—The Gemological Institute of America’s Carlsbad laboratory recently spotted a natural rough diamond covered in a layer of emerald-green crystals intended to imitate the color of a green diamond.
A client submitted a 6.49-carat green crystal for a Colored Diamond Grading Report, and the surface of the stone was covered by uneven patches of green color, according to a lab note written by Virginia Schwartz and Christopher Breeding that appeared in the Summer 2019 issue of Gems & Gemology.
An analysis by the lab revealed a Type Ia diamond, but GIA noted that the ultraviolet-visible spectrum was “very unusual” and didn’t show any bands produced by radiation damage.
Most natural green diamonds are colored by radiation damage, which often brings with it “surface patches” of green or brown color that gemologists refer to as “radiation stains.”
These stains are important, Schwartz and Breeding pointed out, because they indicate a diamond has been exposed to a source of natural radiation.
After examining the diamond, they discovered that its green color was not, in fact, due to radiation stains but to groupings of emerald-green “platy crystals”—identified through Raman analysis as chromium oxide—attached to the diamond’s surface.
The individual crystals were easily removed with tweezers or a pointer probe but stayed attached to the surface when they underwent normal actions, like wiping the diamond with a cloth.
The researchers said most colored coatings they see in the lab are on faceted stones and are pink, orange, red or blue.
They added that the use of chromium oxide powder to create a green coating represents “a significant attempt to artificially reproduce the features seen on natural green diamonds.”
GIA researchers also noted that even though the coating can easily be distinguished from natural green radiation stains under magnification, the diamond is “a strong reminder to carefully examine any green diamond, even rough crystals, in order to know exactly what you are buying.”
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.