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Art Deco Jade Brooch Deep Emerald Green, Certified Untreated Kosmochlor Jade

About the Item

This Art Deco Jade Brooch features a gorgeous deep Emerald Green, Certified Untreated Kosmochlor Jade. It's the mineral chromium that gives jade (and Colombian emeralds) their luscious green color. Kosmochlor is a variety of jade with extra chromium. Resulting in a deeply saturated pure green. In shadows, this brooch almost looks black. Almost. But in the sun, the color is a vivid pure green; a green without any yellow. If you love a deep, deep mysterious green that is reserved in the shadows but expressively, gorgeously green in the sunlight, this is the brooch for you. I especially love the late eighteenth, early nineteenth century polish, created laboriously, skillfully, entirely by hand. The carving depicts foliage and it's cooling just to look at it. Created right around 1910 or thereabouts, the 31mm x 28mm hand carved, pierced and polished jade rests securely within its utterly simple yet sublime silver frame. Once gilded in gold, only the faintest hint of yellow remains on the back frame, which you can see if you enlarge my macro images. The jade itself measures 31.28mm x 21.39mm and the overall dimensions of the brooch are identical to the dimensions of the stone, with the pin sticking out an additional 4mm. There is 3.80mm of space between the pin and the frame, so there should be plenty of room to wear it on a ribbon or dog collar around your neck. This gorgeous treasure from the early Art Deco era ships with a certificate from Stone Group Labs stating that the stone is untreated kosmochlor jade.
  • Metal:
    Silver
  • Stone:
    Jade
  • Stone Cut:
    Oval Cut
  • Weight:
    5.83 g
  • Dimensions:
    Width: 0.85 in (21.39 mm)Length: 1.24 in (31.28 mm)
  • Style:
    Art Deco
  • Lab Report Available:
    SGL 2401031-BPF
  • Place of Origin:
    China
  • Period:
    Early 20th Century
  • Date of Manufacture:
    1910-1925
  • Condition:
    Wear consistent with age and use.
  • Seller Location:
    Southbury, CT
  • Reference Number:
    1stDibs: LU1589123019672

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