Glowing green abstract shape resembling a four-leaf clover in darkness.

Photomicrography: Images from Within

Photomicrography: Images from Within Images by Sammantha Maclachlan Sammantha Maclachlan FGA DGA FIRV MJVA AJP PJDIP CPAA - JVA Registered ValuerÂ®ï¸ Winner of the Gordon Ness trophy...
Elegant ring with a large blue gemstone and gold accents.

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...
Book cover of 'Marcus & Co.' featuring botanical illustrations.

Rediscovering Marcus & Co.: Macklowe Gallery Brings Masterpieces Into the Spotlight

NEW YORK – For decades, Marcus & Co. has been one of those elusive names in American jewelry history: admired by connoisseurs, but shrouded...
A ring with a large yellow-green gemstone and a silver band.

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...
Illustration of tariff dispute between India and the USA.

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...
Volunteers in yellow uniforms at an outdoor charity event for fire brigade support.

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...

GIA Research: Akoya Bead Cultured (BC) Pearls with 1.6mm Nacre Thickness!

When we talk about akoya cultured pearls, we usually think of the traditional mollusks used for pearl farming – members of the Pinctada fucata...
A collection of colorful gemstones scattered on a white surface.

The Final Rio Tinto Beyond Rare™ Tender! Rare Pinks, a Red, a Dozen Fancy...

Rio Tinto has announced what will be its final Beyond Rareâ„¢ Tender–the third and last of its annual "Art Series." This closing chapter, titled...
Close-up of opal stones promoting a new science course.

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,...
Two stick figures with boxing gloves and nets fighting each other.

WFDB Launches New Instagram Campaign: Shoveling Coal into a Microwave Oven? CONVERGE has Something...

A week ago, the World Federation of Diamond Bourses (WFDB) posted a short promotional video on Instagram titled "Diamonds should be made by nature,...
Gold pendant necklace with colorful enamel and pearl drop.

Jewelry at Rago Arts: Antique to Art Deco on September 10, 2025

Rago Arts' September 10, 2025 auction in New Jersey offered more than just beautiful jewels–it offered a window into jewelry history. Art Nouveau, Art...
A large translucent crystal next to a quarter for scale.

GIA Examines Motswedi: World’s 2nd Largest Gem Quality Rough Diamond Crystal

The Gemological Institute of America (GIA) has announced that their research team in Gaborone, Botswana – joined by Tom Moses, GIA Executive Vice President...