Diaspore (large color change stone)

Item Description

Diaspore isn't a mineral that is commonly found in gem quality material, but most collectors are familiar with the superb gem quality material found in Selçuk District in Turkey. Keep in mind that most Diaspore around the world is opaque, and there are truly only a few places in the world where fine gem Diaspore is found. The Turkish material is certainly at the top of the mountain in terms of quality and large stone. Sometimes you'll see this material marketed under the trade name "Zultanite" or "Csarite", but it's all Diaspore. Here we have a large "Marquise" cut gem with virtually eye-clean clarity. The stone shows a color change from a greenish-yellow hue under cooler temperature lighting to more of a pinkish-yellow color under warmer lights. It's hard to find good gem Diaspores today because the entire locality has been purchased as a large commercial operation, so the supply is under control by a single operator now. If you collect rare gems, don't miss out on this impressive beauty for a great price. The high retail value on this gem is $3,460.00. For comparison