Natural Chrysoberyl Cats Eye 100cts + from sri lanka

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  • เผยแพร่เมื่อ 20 เม.ย. 2020
  • Cat’s eye gems of many different mineral species are well known, but when the term “cat’s eye” is used alone it always refers to the rare gemstone chrysoberyl. However, not all chrysoberyls show this chatoyant effect. Transparent to translucent chrysoberyl without a cat’s eye can make a wonderful faceted stone. Chatoyant chrysoberyls are cut into cabochons to best display their spectacular eyes. Some chrysoberyls that show a color change are known as alexandrites. All varieties of this gem are prized jewelry stones.
    In cat's eye, there are short needles and tubes parallel to the long axis of the crystal. Liquid-filled cavities with 2-phase inclusions, stepped twin planes.
    cetable chrysoberyl is known up to several hundred carats, and cat’s eyes of similar size have also been found.
    Faceted gems over 40-50 carats are very rare. The world’s largest cut cat’s eye is “The Eye of The Lion,” a dark, greenish yellow 465-ct oval cabochon, cut from a piece of Sri Lankan rough weighing over 700 carats.
    The world’s largest faceted chrysoberyl is a flawless 245-ct, slightly yellowish green oval-cut gem from Sri Lanka.
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