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Ed Bristol

Untreated Oregon Sunstone 9.48

Yellow orange Oregon sunstone
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9.48 Carat
Medium 50
Free of Inclusions



  • Identification: Natural Unheated & Untreated Sunstone (copper-bearing labradorite feldspar)
  • Carat: 9.48
  • Shape: Brilliant Cushion
  • Measures: 13.44x15.18x10.05 (millimeter)
  • Color Grade: Very Good (Dichroic)
  • Tone: M50
  • Color Zoning: None (Optical Phenomena)
  • Clarity: Free of Inclusions (faint schiller)
  • Cutting Grade: Excellent (precision cut)
  • Brilliancy: 95%
  • Depth: 68%
  • Origin: Oregon USA (Plush/Burns)
  • Treatment: None

Certificate No: D04979 (additional free AGL report included)

Overall Grade: Excellent

Comment: Wild Fish presents: Oregon Sunstone. (Forget andesine from China.) This is the original all-natural copper-bearing US Sunstone. Like Opal, they offer a life-time study of gem phenomena ranging from 'simple' colour-change, to iridescence, di-, tri- and quad-chroic colour effects, multi-colours, aventurescence and a world of inclusions and their optical effects. This giant 9.48 carat shows three colours (yellow, orange and some green) depending on where and how you look with a orange centre and golden yellow rays. Thin copper strands produce the faint sheen but they are not visible under the 10fold lens. Note: 'Free of Inclusions' in Sunstone is as rare as it is in say, Ruby but we still have that gleam and shimmer that comes from the sub-10fold micro-inclusions of copper. Add highest brilliancy, adamantine lustre and excellent cutting and you are looking at a world-class rarity. A head-turner in jewellery, I suggest in a mighty pendant, or simply an heirloom collector item. The small BGL reports will be supplemented by AGL reports. Though mined in the USA we will nevertheless get you a piece of rainforest to preserve for your grandkids.

Here is an article about this new exciting collector gem from the GIA.

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