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Untreated Cobalt Spinel 2.88

ice blue Ceylon cobalt spinel precision cut
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Price:
$15,900.00
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2.88 Carat
Ice Blue
Light 20
Lightly Included

Details:

GRADING REPORT RBS288

  • Identification: Natural Unheated & Untreated Cobalt Spinel
  • Carat: 2.88
  • Shape: Round Brilliant
  • Measures: 8.49-8.50x5.65 (millimeter)
  • Color Grade: n.a.
  • Tone: Light 20
  • Color Zoning: None
  • Clarity: Lightly Included
  • Cutting Grade: Excellent (precision cut and re-cut by Conny F.)
    • Brilliancy: 99%
    • Depth: 66%
  • Origin: Sri Lanka
  • Treatment: None

Certificate No: Guebelin 14070005

Overall Grade: Excellent++

Comment: Reborn in a precision-cut by Conny F.; from 3.15 carat down to 2.88. A gemological miracle, nothing less: ice-blue cobalt-spinel (meaning that the only color-agent is cobalt, nothing else to add the common mix of purple, grey, blue, pink etc. as in any other spinel). Swiss Gubelin reporting just that, plus 'no heat'. No other has been found. Blazing fire from a world-class precision cut and the most gorgeous crystal. Now in final perfection. Beauty plus extreme rarity - never a cheap combination. If it were not repetitive I would place another bet: you can't find a similar one. Conny's latest re-cut released more blue, perfected the symmetry, sharpened each facet to maximize brilliancy, but lost us only 27 points. No visible inclusions to the eye, but fantastic inner life under the lens (below the 'cathedral' and the 'veil'; the 'spaceship' and others under more images). A crown piece for any gem collection or once-in-a-lifetime jewel. Just as mesmerizing as the endless row of images suggest (I could not stop). 

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