Events & AwardsAug 17, 2026
Exhibition on Louis Comfort Tiffany’s Studios to Open at The MetThe exhibition will feature more than 100 drawings of stained-glass lampshades, windows, and more, many created by women and émigrés.
GradingJun 26, 2017
GIA Selling Mounted Gem Testing Device at a Discount
The iD100, which is used to identify lab-grown diamonds even when they’re set in jewelry, is available for $3,995--for now.
The GIA is selling its new GIA iD100, which was created to screen for man-made diamonds in finished jewelry, for $3,995 through the end of the month.
Hong Kong--The Gemological Institute of America’s new testing device that can be used on both loose and mounted diamonds, the GIA iD100, is available at a lower price through the end of the month.
The GIA unveiled a prototype of the then-unnamed device at a conference on man-made diamonds held in India in April and then debuted it at the JCK Las Vegas show in early June.
The desktop device, which is pictured above, uses advanced spectroscopic technology to identify natural colorless diamonds that are at least 0.9 mm (approximately 0.005 carats) or bigger. It can be used on loose stones or diamonds that already have been mounted into pieces of jewelry.
Here’s how it works.
After turning on the GIA iD100, the user presses “Calibrate” on the touch screen. He or she then uses the probe to illuminate each stone, and the device gives both a visual and an audio response, either pass or refer. It takes one to two seconds per stone.
By identifying the natural diamonds (the stones that come up as “pass”), the instruments allows the user to pick out the stones that are either diamond simulants (CZ or moissanite) or grown by man using either the HPHT or CVD process (the stones that come up as “refer”). These then can be sent to a lab for further testing.
The GIA said the iD100 will refer 100 percent of diamonds that are either man-made or simulants.
The $3,995 price (which includes a $500 deposit to be made at the time of purchase) is available to everyone until the end of June. Those interested in placing an order should contact the GIA at instrumentsupport@gia.edu.
After June 30, the price of the iD100 will go up. A GIA spokesman said Friday that the lab has not yet set a final price for the instrument, though it has been described as being in the “$5,000 range.”
Also at JCK Las Vegas and the Hong Kong jewelry show, the lab demonstrated GIA M2M, a service and digital platform that shows consumers the journey of his or her diamond.
M2M is a digital storytelling platform and app that provides a look at all the chapters of a diamond’s story--from the mine to cutting to market.
Editors' Picks
Sponsored by
More on Grading
The Latest
CollectionsAug 17, 2026
Marquise Diamonds Dance in Spinelli Kilcollin’s ‘Wren’ CollectionMarquise-cut diamonds in drop charms are the center of the new collection, reflecting the movement of a dancer in modular styles.
Events & AwardsAug 17, 2026
There’s a New Jewelry Show Coming to FloridaThe inaugural Fort Lauderdale Jewelry, Antique, & Object Show will be held from Jan. 28 through Feb. 1, 2027.
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying EventsRetailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.
IndependentsAug 14, 2026
Smyth Jewelers to Open Fourth LocationThe family-owned jeweler will open a new showroom in Bel Air, Maryland, this fall.
Weekly QuizAug 13, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
CrimeAug 14, 2026
Wife of Man Convicted in Jeweler’s Murder Sentenced for Conspiracy Amanda Ileana Hernandez is married to Carlos Hernandez, one of two men in prison for the 2024 murder of Michigan jeweler Hussein Murray.
TrendsAug 14, 2026
Paul Morelli’s Latest ‘Wavey Vine’ Earrings Embrace ColorThe reimagined jewel, our Piece of the Week, trades the diamonds in the original 1998 design for blue, pink, yellow, and green sapphires.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
Supplier BulletinAug 13, 2026
Your Piece Could Be the One Editors Talk AboutSponsored by American Gem Trade Association
FinancialsAug 13, 2026
Pandora’s ‘Talisman’ Collection Shines, Lab-Grown Diamond Sales FallIn the United States, second-quarter sales were flat amid soft consumer sentiment and lower in-store traffic.
AuctionsAug 13, 2026
This Gold Cadbury ‘Conundrum’ Egg Set a World Auction RecordThe 22-karat gold egg, sold at Batemans Auctioneers in the U.K., was part of a 1980s treasure hunt ad campaign for Cadbury Creme Eggs.
SourcingAug 13, 2026
2,488-Carat Diamond, Largest Found in Botswana, Has a New Owner Lucara Diamond Corp., which recovered the “Motswedi” diamond from the Karowe mine, sold the stone for an undisclosed amount.
CollectionsAug 13, 2026
John Hardy Infuses ‘Icon,’ ‘Heishi’ Collections with ColorThe expanded collections now feature hand-cut gemstones like topaz, tanzanite, chrysoprase, chalcedony, smoky quartz, and fire opal.
Lab-GrownAug 13, 2026
Jean Dousset Opens Third StoreThe lab-grown diamond jewelry brand’s newest boutique is in Westfield Valley Fair in Santa Clara, California.
SourcingAug 12, 2026
Eshed-Gemstar on the Painstaking Process of Cutting ‘The Legacy Emerald’The gemstone supplier and manufacturer acquired the remarkable 104-gram Zambian emerald at Gemfields’ auction in May.
CrimeAug 12, 2026
Elderly NYC Woman Targeted in Jewelry Swap SchemeTwo suspects offered to trade the woman a “winning” lottery ticket for her jewelry.
SourcingAug 12, 2026
Another Diamond Mine Poised to CloseFinsch has been in business rescue since May, and owner Petra Diamonds said it sees no viable path forward for the mine.
CrimeAug 12, 2026
Jewelry Store Employee Gets 20 Years to Life in Choking Death of BossMichel Patrick DeSalles was sentenced after pleading guilty to the 2017 murder of Omid Gholian, who owned a jewelry store in Manhattan.
MajorsAug 12, 2026
Frederick Goldman Names New SVP of SalesLongtime industry executive Beth Miller has taken on the role.
AuctionsAug 11, 2026
Verdura Unicorn Brooch With Royal Connection Up for Auction The brooch was owned by Virginia Fortune Ryan Ogilvy, who served as a lady of the bedchamber to Queen Elizabeth II for nearly 50 years.
MajorsAug 11, 2026
Signet Jewelers Selects Mattel Exec to Lead Zales, BanterJamie Cygielman will take on the role on Aug. 24.
IndependentsAug 11, 2026
Polly’s Fine Jewelry Co-Owner Richard Moore Dies at 69Moore, Polly’s husband, is remembered as a family man with an easygoing spirit and a love for sports and the outdoors.
ColumnistsAug 11, 2026
Creative Connecting: How to Sell Colored Gemstones to Gen ZDuvall O’Steen and Jen Cullen Williams share the best ways to display, present, and explain colored gemstones to younger customers.
Events & AwardsAug 11, 2026
NAJA Announces Lineup For 2026 Fall Virtual ConferenceThe mid-year conference for jewelry and watch appraisers will take place Sept. 5-6 on Zoom.
TechnologyAug 10, 2026
Colorado Jeweler Launches Customization Tool He Built HimselfHonest Hands Ring Co. Founder Benjamin Bosworth shared his thoughts on jewelry technology and why AI can never replace the human element.
MajorsAug 10, 2026
QVC Exits Chapter 11 Bankruptcy, Names New Interim CEOQVC Group President and CEO David Rawlinson is temporarily being replaced by a familiar face, former QVC CEO Mike George.
CollectionsAug 10, 2026
State Property Puts a Ripple in the ‘The Voyager’ CollectionThe brand also added two one-of-a-kind brown diamond pieces to the “Sanssouci” series of its “Gardens” collection.
