The Fall 2025 edition of GIA’s quarterly journal, Gems & Gemology (G&G)
GIA’s Fall Gems & Gemology is now available for free online. In this season’s issue, very rare and fascinating diamond properties bring out the...
Christie’s Geneva Magnificent Jewels: Featuring the Mellon Blue and the Rainbow Collection
Christie's once again brought its Magnificent Jewels sale to Geneva this past week, following its May auction that brought in more than $72 million....
Invisible-Set Genius: Inside the Craft of Oscar Heyman
A Personal Note
Every now and then, a jeweler sends out a photo that stops you mid-scroll. Not because it's big or flashy, but because...
AGTA Announces the 2025 Spectrum & Cutting Edge Award WINNERS! … and the Roskin...
On a Personal Note:There was certainly a buzz in the room – well over 300 pieces to view, loose gems and gem-set jewelry stretched...
AGTA Continues the Fight for Zero Tariffs: Thailand and Vietnam Look to be Next
By Gary RoskinRoskin Gem News Report
The American Gem Trade Association (AGTA) has just announced a major development in its tariff-reduction campaign: the United States...
Scoping It Out: Photomicrography from Melissa Scarani
Melissa Scarani, GG (GIA), FGA, ASA, is the founder of Gemology Resources, and Houston Gemological Lab in Houston, Texas. A seasoned gemologist with over...
How AGTA is Singlehandedly Saving the International Colored Gemstone Industry*
Behind the scenes, the American Gem Trade Association (AGTA) has been fighting a quiet, complex, and costly battle in Washington, D.C. As AGTA CEO...
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, by Sammantha Maclachlan
Photomicrography: Images from Within
Images by Sammantha Maclachlan
Sammantha Maclachlan FGA DGA FIRV MJVA AJP PJDIP CPAA - JVA Registered Valuer®ï¸
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...
