A Personal Flight: Peridot from Space
by Rick StinsonThe “New” 4 Billion-Year-Old Gem
Peridot From A Pallasite Meteorite
Pallasite meteorites have been known since the German naturalist Peter Pallas (1741–1811), who studied in...
Lizzadro: Celebrating 60 years!
New Exhibit Celebrates the Lizzadro Museum’s 60th Anniversary “On The Cutting Edge - Contemporary Gemstone Sculpture”By Helen Serras-Herman
A fabulous exhibit titled “On the Cutting...
A Wearable ET Pallasitic “Death Star”
by Charles Michael Designs
Charles is an extraordinary jeweler, and of course, on our "radar" since he has a talent for bringing out the best...
Ti Surface Diffusion: Just when you thought it was an easy identification
New research shows that the titanium surface diffusion treatment is being polished off the facets, but left inside cavities and fractures. Stone Group...
Not Just Another Pocket Stone
A genuine Munsteiner "pocket stone," cut and polished by Tom Munsteiner. Isn't it interesting that while the gem artist feels this is something you...
Making an Impression: The Art and Craft of Ancient Engraved Gemstones
Virtual Exhibition Tour Available here belowEmory University, Michael C. Carlos MuseumAtlanta, Georgia, USA
According to Emery University, “Making an Impression: The Art and Craft of...
An Unusual Pearl: Coated or Not?
Roskin Gem News ReportGary Roskin
Conch Pearl: Coated, or not?
Identification of pearl coatings can be a bit tricky, especially if the coating has been performed...
What is a “Circular Brilliant”?
The Palm Tree BroochChristie's Auction, Dec. 6
Gary Roskin -Roskin Gem News Report -December 07, 2022 -
The Palm Tree Brooch, a Cartier estate piece, was...
From the Gem & Mineral Vault
Rhodochrosite
from Peru
on view at the Harvard Mineralogical & Geological Museum (MGM), Cambridge, Massachusetts, across the Charles River from Boston.
Photo by Gary Roskin
Sotheby’s Magnificent Jewels
Sotheby's Magnificent JewelsAuction Results, Wednesday Dec. 7
Gary Roskin - Roskin Gem News Report - December 14, 2022 -
Christie's auction went first on Tuesday,...
Is it a Padparadscha, or not?
Is it a Padparadscha, or not?
GIA Observes Unusual Color Change in Sapphires During Color Stability Testing... and what is Tenebrescence?
Above - Image copyright GIA,...
Natural Pearls
Natural Pearls -
Pearls that are created by Mother Nature (and the oyster, of course) are called "Natural Pearls." There is no (intentional) human...
