News Archive

Dreher Carvings

(Five Generations of) Gemstone Animals from Idar-Oberstein 240 pp., 22 x 29 cm, 200 color Illustrations. Hardcover with dust jacket. English. $85.00 ISBN: 978-3-89790-507-8 ©2017 Arnoldsche Art Publishers   During a recent visit to Carlsbad, California for the Sinkansas Symposium, I had the…

Colored Stone Market

The June JCK Vegas Show largely fizzles as buyers are for the most part M.I.A. Big trends in colored stones continue to be Ethiopian emeralds, teal colored sapphires, mint, and most other garnets and neon…

Daylight Fluorescent Opal

Semi-transparent to transparent opal that is capable of being faceted is not unusual. Most are familiar with the cherry opal from Mexico, ranging in color from a yellowish- orange to reddish-orange, some with a play…

Vayrynenite

Väyrynenite [´vjairənə,nait] is an exceedingly rare manganese- beryllium phosphate mineral with chemical formula of Mn2+Be(PO4)(OH,F). Initially it was found by a Finnish mineralogist of Russian origin Oleg von Knorring (1915-1994) in Viitaniemi, Finland in 1939…

Colored Stone Market – May 2018

The market remains generally attractive heading toward the important JCK Las Vegas show. Dealers expressing concern regarding the difficulty sourcing extra fine ruby and sapphire. Emerald continues to excite world markets. The price ceiling that…

Diamond Market

Diamond markets are quiet with prices steady as the market shrinks a bit. With many retail store closings, the way diamonds are purchased is changing. However, DeBeers Forevermark appears to be going strong as they…