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20.47 ct Supreme Fancy Shape (25 x 18 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

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20.47 ct Supreme Fancy Shape (25 x 18 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

Special Price $152.99 Regular Price $229.99
In stock
SKU
217534
Rare Stone! Mined From Earth! Unheated / Untreated Multi Color Color
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SKU217534
Gem TypeOpal - Boulder Opal
Quantity in stock1 item(s) available
ColorMulti Color
ShapeFancy
Size/Dimension (L x W)25.31 x 17.78 x 5.62 mm
Weight20.47 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)
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FREE of cost, if offered Certificate for this item ($0)
GIL Certificate (Processing Time 5 days) ($20)
AIG Certificate (Processing Time 5 days) ($20)