The Montana Gem Travelogue: A Firsthand Look at Sapphires, Gemology, and Big Sky Mining
The following is a review of Eric Emms’ Montana sapphire mining adventure.
"Hunting Montana Sapphires"This past June, Eric Emms, well-respected British gemmologist, educator, and Hatton...
The Italians are Coming! The Edit: A Gallery of Italian Jewelry Masterpieces
NEW YORK — The Edit, an exhibition of contemporary Italian jewelry design, will be held just following the JA Show, in New York City...
Photomicrography: Images from Within
Photomicrography: Images from Within
Images by Sammantha Maclachlan
Sammantha Maclachlan FGA DGA FIRV MJVA AJP PJDIP CPAA - JVA Registered Valuer®️
Winner of the Gordon Ness trophy...
ZaZa Azul: A Paraíba for the People
How a beloved 13.34-carat tourmaline went from a private treasure to the Smithsonian
WASHINGTON, D.C. — On Tuesday morning, September 16th, 2025, the Smithsonian Institution’s...
A Heritage Auction Marathon: Over 500 items – an All Day All Night Sale,...
In our last report on Heritage Auctions’ September 29 Fall Fine Jewelry Signature® Sale, we focused on a few beautiful pieces of colored gemstone...
Tariffs Squeeze Moonstone Trade: 50% India Tariffs are Affecting Business Right Now
Having just returned from California, where GIA’s Symposium and AGS’s Conclave joined forces as CONVERGE, we had an opportunity to visit with Manu Nichani...
CGH Opens 5th Annual Fundraiser alongside MJSA’s Responsibly Sourced Design Challenge!
Columbia Gem House (CGH) has launched its fifth annual online fundraising raffle, "Opals for Outback Heroes," inspired by — and directly benefiting — the...
GAA’s Certificate in Opal Studies: A Complete Education in the World of Opal
The Gemmological Association of Australia (GAA) has taken a giant leap this year with the launch of its Certificate in Opal Studies—its first comprehensive,...
GemGuide Pricing Update: Sapphire Charts in September/October Show Notable Changes
The September/October 2025 issue of the GemGuide from Gemworld International features several helpful changes to the sapphire pricing charts, now also available in the...
U.S. Tariffs on India Hit 50%: 25% Now, 25% MORE by the End of...
As you are probably fully aware by now, the United States has moved to impose steep tariffs on Indian goods, escalating trade tensions and...
And the Winners Are… Winners of the $30,000 AUSTRALIAN OPAL AWARDS 2025!
Celebrating Australia’s National Gemstone
Since 2000, the Australian Opal Awards have showcased the creativity and skill of jewelry designers and gemstone artisans who work with...
Ruby & Sapphire from Winza: Columbia Gem House Announces New Acquisition
Columbia Gem House Announces New Acquisition of Untreated Sapphires and Rubies from Tanzania
Columbia Gem House (CGH), the gem cutting and wholesale supply house based...
