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12.70 ct Tremendous Fancy Shape (26 x 17 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

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12.70 ct Tremendous Fancy Shape (26 x 17 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

Special Price $132.99 Regular Price $199.99
In stock
SKU
226174
Rare Stone! Unheated / Untreated Multi Color Orgin From Australia
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SKU226174
Gem TypeOpal - Boulder Opal
Quantity in stock1 item(s) available
ColorMulti Color
ShapeFancy
Size/Dimension (L x W)26.48 x 16.98 x 3.20 mm
Weight12.7 cts
ClarityTranslucent
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)