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Untreated Ceylon Zircon 6.01 (GZI601)

Vivid greenish yellow Ceylon Zircon.
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6.01 Carat
Lively Yellow-Green
Medium Dark 60
Free of Inclusions


Grading Report: GZI601


  • Identification: Untreated & Unheated Natural Zircon
  • Carat: 6.01
  • Shape: Fancy Trillion/Shield
  • Measures: 10.55x9.50x6.80 (millimeter)
  • Color Grade: Very Good
  • Tone: Medium Dark 60
  • Color Zoning: None
  •  Clarity: Free of Inclusions
  • Cutting Grade: Excellent
    o Brilliancy: 90%
    Depth: 72%
  • Origin: Sri Lanka
  • Treatment: None 

Certificate No: SLGA 006450 (see more images)


Overall Grade: Very Good

Comment: Large Zircon in trillion or shield shape maximizing luster. Fresh grass green with yellow flashing brilliancy. Compare images with/without luster for color-only e.g. in handshot. Zircon beats most other stones with an outstanding adamantine (diamond-like) dispersion. Serious size gem in a sought-after Zircon hue. No window, no visible inclusions, no treatments, original 2005 report from the "Sri Lankan Gem Authority", a government institution. Unique gem that will fill rings up to size 10, or a pendant with 11x9mm. No brown, never pale, never dark. See different light settings under 'more images' with the no-luster handshot catching the pure day-color. No window, no inclusions, no treatments. Individual local hand-cut done with great care and craft (see side images). At $400/ct one of the last untreated gem varieties in rich colors and fine luster at moderate cost. Zircon is durable even for daily wear though in trillion the corners need to be protected in any material.



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