Yogo Mine in Montana, which produces the popular Yogo sapphires, was dormant for nearly four decades.
In a Q&A, founder Geoff Dominy shares WGF’s plans for training a generation of gemologists in gem-producing countries in Africa.
Some sapphires gain orange or yellow coloration when exposed to incandescent light, according to a recent lab note.
It’s believed to be part of a $90 million scheme perpetrated by a man who billed himself as a psychic online.
Franklin police believe they could be connected to five other similar robberies.
They will be available exclusively at the retailer through Valentine’s Day 2023.
The 59th Ace It event is scheduled for Jan. 29 and 30 at the Tucson Convention Center.
After a 13-carat pink diamond was pulled ahead of the sale, blue and colorless diamonds reigned supreme.
Holabird Western Americana Collections offered hundreds of treasures recovered from the S.S. Central America in its Dec. 3 sale.
A princess’s tiara fell within its pre-sale estimate while an Art Deco bracelet from a queen doubled it.
In the spirit of an advent calendar, “Gems to Help Ukraine” will sell a stone a day through Dec. 24 on the Nomad’s Instagram account.
The secure mark combines an overt mark with a covert data set to provide assurance on a gem.
It will provide a place for select luxury watch retailers to sell their stock.
Liqhobong has been in a care-and-maintenance period since the start of the pandemic.
The partnership brings Claire’s jewelry and accessories to 20 Macy’s locations in time for the holiday season.
Scheduled for Feb. 1, the event will feature six gemological education presentations and three hands-on sessions.
The jewelry cleaner manufacturer jumped up to No. 3066 on the Inc. 5000 list.
The Dec. 1 jewelry sale at Bonhams-owned Bruun Rasmussen will have several other pieces of royal jewelry on the block.
The S.S. Central America sank in 1857 off the coast of South Carolina, carrying tons of gold from the California Gold Rush.
Debuting today, it is open to Provenance Proof blockchain users.
Senior Editor Brecken Branstrator’s highlights include a chrome tourmaline ring, a giant opal necklace, and an American mined stone.
The discoveries were outlined in the Lab Notes section of the fall 2022 issue of Gems & Gemology.
It follows a few other notable fancy color diamonds at auction this fall, with mixed results.
Slated for Saturday, Feb. 4, it will feature presentations, networking, and an evening component with music and dinner.