Jamie Dunton and Gabriella Botelho are the first graduates of the program, created by the WJA Foundation and Julius Klein Diamonds.
GIA Finds Imitation Emerald Made of Layered Glass
The 3.35-carat stone had a natural beryl core; glass layers were attached to it with a “colorless cement.”
New York—Another gem has surfaced at a lab that was not entirely what it seemed.
A 3.35-carat “emerald” submitted to the Gemological Institute of America’s New York lab turned out to be an assembled imitation gemstone composed of five layers of glass cemented to a beryl core, according to an article by Tyler Smith and Augusto Castillo in the Summer 2018 issue of Gems & Gemology.
The rectangular core was a natural beryl, the mineral species to which emerald belongs, but the crown was a single piece of glass attached to the pavilion, while the pavilion was composed of four asymmetrical glass segments glued to the core using a “colorless cement.”
The imitation stone probably took a while to create using a “laborious multistep cut-and-glue process,” GIA authors said, as indicated by the way the four glass segments in the pavilion are interlocked.
The manufacturing of the piece started by attaching a glass segment to the beryl core. Both were then cut to create a flat surface for a second piece of glass. The second was then added, cut to allow for the third, and so forth.
After all four had been added, the assembled pavilion likely would have been polished flat to allow for the crown, which then would have been attached.
(Check out the original lab note from GIA for a diagram showing the process.)
The article also noted that while assemblages of various materials have long been used to imitate precious stones—with the most common kind using two or more pieces joined together in parallel, layered fashions—GIA researchers weren’t able to find record of another stone assembled using the process applied to this “emerald.”
RELATED CONTENT: Glued-Together Diamond Turns Up at GIAGIA said it was the first time one such assembled stone has been submitted to its New York or Carlsbad laboratories.
Researchers surmise that the imitation emerald was created relatively recently, given the fact that all its exposed surfaces are made of glass and, yet, the facet junctions are still sharp and the stone lacks wear.
“It is intriguing that an antiquated technique is updated in modern times, serving as a cautionary tale of the ingenuity counterfeiters employ,” the authors said.
The Latest
In the spirit of giving, Retrouvaí will donate $4,000 from the sale of this ring to the Los Angeles Regional Food Bank.
Co-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.
‘Forever Present’ campaign revives the iconic A Diamond is Forever tagline and celebrates the diamond dream.
Along with the latest “Gardens” collection, the brand has released limited-edition designs offering more indulgent pieces.
The 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.
The 2,488-carat diamond recovered from a mine in Botswana has been dubbed “Motswedi” while its 1,094-carat sibling is “Seriti.”
For over a century, Jewelers of America has been the voice of the industry and valuable resource to jewelers across the country.
The average price per carat hit a record high for the miner, which said it remains unaffected by the conflict in Mozambique.
The nearly 17-carat stone made history for the color-change gem that, according to the auction house, is experiencing a “notable surge” in the market.
More than a century after survivors gifted a Tiffany timepiece to the captain of the ship that rescued them, the jeweler has reclaimed it.
The videos highlight how pieces from the “Xpandable” and “Reversible Xpandable” collections put the wearer in the spotlight.
Feldman reflected on 45 years in the jewelry industry and clarified that it’s not a total retirement.
The luxury brand is being honored for excellence in high jewelry design in its “Haute Joaillerie Sport” collection.
Circelli was a pioneer in the world of TV shopping who is remembered for his passion for gemstones and his big personality.
The nearly 6-carat stone headlined the recent jewelry auction, which also featured Mica Ertegun’s jewelry.
The three men, who got their nickname because they’d toss the jewelry they stole into black plastic bins, were arrested back in August.
“The History of Diamond Engagement Rings: A True Romance” is a 128-page small-format book containing more than 165 images.
Gearys opened a 6,200-square-foot Rolex store with a design that pays homage to the brand’s connection to the ocean.
DDG said the honorees’ business practices embody a commitment to positive social impact, industry innovation, and community empowerment.
Estimates on the size and value of the solitaire diamond, which is mounted on a diamond pavé-set yellow gold band, vary.
These half-moon tanzanite earrings totaling 25 carats are part of a special trunk show taking place this weekend in Dallas.
The National Jeweler editors recap the top news, the best jewels, and their favorite stories of the year.
The highest-grossing lot of the sale was the retired QB’s Rolex Paul Newman Daytona “John Player Special.”
Recent expansion initiatives at the Zambian emerald mine have shown strong production numbers, said Grizzly founder Abdoulaye Ndiaye.
Carrie Forman joins the brand to guide it into the next phase of growth with major and independent retailers in the U.S. and abroad.
The competition awarded 12 designers, each from a country where De Beers recovers diamonds, with business support and tuition assistance.