Punctuation Matters: What You Read is not Always What You Think You Read
A Personal Note
We saw a punctuation typo the other day. Instead of a “.20-carat diamond,” it was written as a “20-carat diamond.”
When you looked...
AGTA Meets with Royal Thai Government to Press for Trade Agreement: UPDATE
AGTA Goes to Thailand: Working Both Sides of the Tariff AgreementThe American Gem Trade Association (AGTA) has taken its tariff campaign to Thailand.
AGTA President...
AGS Honors Outstanding Service at 2026 Conclave
Las Vegas, NV (September 22, 2026) — The 2026 Conclave celebrated outstanding contributions and service within the American Gem Society (AGS) community through a...
GIA and Gübelin Gem Lab: Ethiopia Confirmed as a New Source of Paraiba Tourmaline
It's official!
Ethiopia is a new source for paraiba tourmaline.
GIA and the Gübelin Gem Lab have now independently confirmed that Ethiopia is the world's fourth...
AGTA Updates Its Gemstone Information Manual and Code of Ethics – It’s More Than...
New enhancement symbols, updated treatment and care guidance— and a change in terminology for synthetic gemstones
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There's more to the American Gem Trade Association's newly...
Gems on Mars? Rubies, Opals and the Hottest New Gem from Jezero Crater
Martian Rocks: Corundum. Chromium. Opal. Chalcedony. Quartz. And now natural glass formed by meteorite impacts.
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'Very Unexpected'NASA Rover Zapped a Rock on Mars And Found...
GIA and Gübelin Gem Lab Confirm New Source of Copper-Bearing Tourmaline from Ethiopia
Independent research documents material from newly reported source of paraíba tourmaline
Press ReleaseCARLSBAD, Calif. and LUCERNE, Switzerland – August 27, 2026 –
Researchers at GIA (Gemological...
Bangkok Gem Night!
September 7th, 2026
OBJECTIVE DIAMOND CLARITY GRADING: We Think We’re Being Subjective, but Our Brain is Doing...
Diamond clarity grading has always been considered subjective. An experienced grader looks at a diamond and says, “That looks like a solid SI₁ to...
Schmuckmuseum Pforzheim Presents “Silver Lining” – Diamonds, Gemstones and the Changing Role of Silver
Three exhibitions are now on view at the Schmuckmuseum Pforzheim in Pforzheim, Germany. They remind us of what silver has done for jewelry —...
Jardin d’Automne: Gemmologie & Francophonie Announces November Conference in Nantes
Gemology, diamonds, ancient jewelry, color science and the art of gem cutting come together November 20 at Nantes Université
Gemmologie & Francophonie will hold its...
American Gem Society Conclave: The Gem Sessions
For gemologists heading to AGS Conclave, there is plenty to keep you busy.
This year's gem educational program ranges from colored stone treatments to...
