Description: Natural Opal
Variety: Black Opal
Shape & Cut: Oval Shape Cabochon Cut
Weight: 3.17 CT.
Measurements: 2.99mm x 7.45mm x 4.47mm
Proportions: Medium
Colour: Hue Reddish-Brown
Grade: Good 4
Tone: Medium 60
Colour Uniformity: Good
Clarity: (LI) Lightly Included
Date of Certificate: November 12, 1986
Issued By: Gemmological Services Ltd.
Certificate Number: X1822
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