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Untreated Zimbabwe Aquamarine 6.40 (OOA640)

Untreated sandawana Aquamarine
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6.40 Carat
Bright Greenish Blue
Light 33
Very Lightly Included



  • Identification: Natural Unheated & Untreated Aquamarine
  • Carat: 6.40
  • Shape: Oval
  • Measures: 15.36x10.77x6.67 (millimeter)
  • Color Grade: Very Good
  • Tone: LM40
  • Color Zoning: None
  • Clarity: Very Lightly Included
  • Cutting Grade: Very Good
    • Brilliancy: 80%
    • Depth: 61%
  • Origin: Sandawana, Zimbabwe
  • Treatment: None

Certificate No: DSEF 080484

Overall Grade: Good

Comment: Giant aquamarine, with 6.4 carat and 15x10mm. A good dash of unheated green is visible only in some images but always in person. Does it have a window? Just! Almost not! But, yet, it is a bit more than only a tilt window, truth told (rare in this, our world). However, as obvious in the long handshot (more images) you get a serious rock of that fascinating aquamarine-only pool-blue with a full brilliancy of 80%; the missing 20% are lost in the almost-not-window. Value-buy for a massive lady's pendant. We will set it for you so that the not-window will not-show but still cuts $1k from the bill. A set of tiny-teeny inclusions, interesting to study but lens only, sit in the outer edge and are totally invisible to the eye. Coming from the same area as our equally shiny emeralds (also beryl) and it seems they all have a rather intense crystal, even in LM40. 


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