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12.28 ct Premium Fancy Cabochon Cut (31 x 16 mm) Unheated / Untreated Natural Boulder Opal Loose Gemstone

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12.28 ct Premium Fancy Cabochon Cut (31 x 16 mm) Unheated / Untreated Natural Boulder Opal Loose Gemstone

Special Price $416.99 Regular Price $629.99
In stock
SKU
215622
RARE! Mined From Earth! Opaque Quality Multi Color Color
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SKU215622
Gem TypeOpal - Boulder Opal
Quantity in stock1 item(s) available
ColorMulti Color
ShapeFancy Cabochon
Size/Dimension (L x W)31.41 x 15.85 x 5.19 mm
Weight12.28 cts
ClarityOpaque
Number of Pieces1
LusterExcellent
OriginAustralia
TreatmentUnheated / Untreated
Refractive Index1.37-1.47
Specific Gravity2.1
Chemical CompositionSiO2.nH2O
None
IGI Certificate (Processing Time 10 days) ($75)
GIA Certificate (Processing Time 10 days) ($125)
GRS Certificate (Processing Time 15 days) ($125)
FREE of cost, if offered Certificate for this item ($0)
GIL Certificate (Processing Time 5 days) ($20)
AIG Certificate (Processing Time 5 days) ($20)