Artisanal Mining: Illegal or Not? – A View from the Diamond Mining Sector

Over the years, we’ve published numerous feature stories focused on artisanal gem mining and the people behind it. We support responsible artisanal miners who...

Sotheby’s Diamond Extravaganza: Showcase in Abu Dhabi

Sotheby"'s hosted an exhibition in Abu Dhabi (9–10 April 2025) featuring a remarkable selection of colored diamonds, including one of the most significant blue...

Diamonds, Debt, and a New Deal on the Pitch

Zimbabwe’s Manica Diamonds Football Club has changed hands — and with it, perhaps, its fortunes. According to a recent report in The Herald, the struggling...

The Hybrid Diamond Color Grading Master Set: How Cost and Availability Caused a Revelation

By now, you"'ve probably seen press releases from AGA (Accredited Gemologists Association) and GCAL by Sarine, announcing the new Hybrid Master Set–a diamond color...

The Winston Red – the Color Every Other Red Diamond Wishes it Had!

The Winston Fancy Color Diamond Collection was unveiled at the Smithsonian Institution's National Museum of Natural History on Tuesday, April 1st, with Smithsonian dignitaries...
Illustration of tariff dispute between India and the USA.

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...

Sotheby’s High Jewelry: Red Diamonds, Vanderbilt Jewels, Graff, Winston, & More!

Sotheby"'s June New York High Jewelry auction presents a standout selection of exceptional gemstones and important pieces from renowned collections. Highlights include a rare 9.60-carat...

Christie’s Headliner, the 23.24-carat “Golconda Blue” Pulled

The 23.24-carat "Golconda Blue" fancy vivid blue diamond has been unexpectedly pulled from the May 14 Christie"'s Magnificent Jewels sale, says Anthony DeMarco, contributing...
Book cover titled 'Making a Killing in Diamonds' with a city skyline at dusk.

“Making a Killing in Diamonds” by Rob Bates

Book #4 (and final installment) in the Diamond District Murder Mystery Series A Shocking Murder. A Glittering Lie. Meet the New Mystery That Cuts to...

Technology-Grade Grown Diamond – TGGD

Lab-Grown Diamonds Move Beyond Jewelry—Into Technology Bench jewelers have known this for years: diamond handles heat. It’s one of the few gemstones you can often...

In Memoriam: George Peter “Pete” Yantzer

George Peter “Pete” YantzerNovember 10, 1948 - January 10, 2026 George Peter “Pete” Yantzer, a respected gemologist and influential figure in modern diamond grading, passed...
Gemological report for a blue sapphire gemstone.

GIA’s “Laboratory-Grown Diamond Quality Assessment Report” – No More Clarity, Color, or Cut!

Now Offers Just Two Tiers — “Premium” or “Standard.” We’ve been telling you this was on the way — and now it’s official. Starting October...