Pezzottaite
Named after Dr. Federico Pezzotta from the Natural History Museum of Milan for his work on Madagascar’s granitic pegmatites, this rare mineral species is relatively new.
Gem NotesThe Game of Battleships
Everyone would say gemologist-appraisers must avoid charging percentage-of-value-based fees. But within the appraisal world, the topic isn’t without its interesting exceptions.
The Appraiser's NotebookSymbolism in Global Jewelry
With more than 800 photos, this book takes readers on a journey through history via all the symbols used in jewelry.
Book ReviewTahitian Pearls
The pandemic hit Tahitian cultured pearl supply hard, with shortages only now starting to stabilize. Tight supply combined with high demand means prices are way up and likely to rise further.
Market TrendsBonas Group Says Gemstones Are ‘Buoyant’ in Tenders
Here’s how well colored stones, and which categories, are selling for the company.
The Trade in FocusGem Focus – April 2023 – Featuring Rainbow Lattice: The feldspar with two phenomena
The time is right for rare and phenomenal stones as buyers look for unique gems that will set their designs apart.
*Gem Focus & Market Pulse (Free Subscriber)Gemstone Source Region Update: Madagascar
The first article for a new series looking at developments in colored stone sourcing areas dives into the latest in Madagascar.
The Trade in FocusAdditional Insights on the Upcoming Russian Diamond Sanctions
Hear what U.S. Ambassador James O’Brien had to say at the recent Jewelers Vigilance Committee luncheon in New York City.
The Trade in FocusWith More Russian Diamond Sanctions Likely, Here’s What the Trade Should Know
They will restrict diamonds sourced in Russia and polished elsewhere from entering the U.S.
The Trade in FocusTucson Sets Upbeat Outlook for 2023
Fine quality, classic gems as well as unusual materials dominated this year’s Tucson trends. There was little interest in lower-quality common stones. Prices are what they are.
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