Fancy Portugues Square Cut Tourmaline, Afghanistan, 8.95 cts
This is one big, extremely brilliant tourmaline, especially for an uncommon pink stone from Afghanistan. I cut the bottom as a sort of Portuguese…
Brilliant Oval with Supernova Crown Cut Tourmaline, Africa, 5.92 cts
This is a very brilliant and beautiful stone that is a light yellowish green color in person with a pinkish area toward one end. For some reason when…
Sinhalite Value, Price, and Jewelry Information
Long thought to be brown peridot, sinhalite was investigated in 1952 and found to be a new mineral. When cut, it is richly colored, bright, and attractive,…
Natrolite, Mesolite, Scolecite Value, Price, and Jewelry Information
All three minerals are fibrous or elongated zeolite minerals. Faceted gems are almost always elongated emerald cuts or step-cuts.
Idocrase Value, Price, and Jewelry Information
Idocrase is one of the lesser known and more beautiful collector gems. When properly cut it is as bright and attractive as the grossular garnets,…
Bustamite Value, Price, and Jewelry Information
Pale pink and brownish red bustamite can make a very attractive faceted gem. However, stones in large sizes are rare and difficult to cut.
Beryl Value, Price, and Jewelry Information
The beryls are among the most popular, and also the most expensive, of all gems. A wide range of color is represented, from colorless to black. Beryls…
Sharing the Fun and Folklore of Gemology
My goal is to share with each of you the fun and folklore or gemstones. Since this is my first article for IGS, my goal is to introduce you to the difference…
Tremolite
Tremolite runs in a solid-state series with actinolite to ferroactinolite. (Ferroactinolite is not used as a gemstone.) Details and information…
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