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7.48 ct Five-star Fancy Shape (20 x 10 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

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7.48 ct Five-star Fancy Shape (20 x 10 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

Special Price $229.99 Regular Price $349.99
In stock
SKU
218504
RARE! Mined From Earth! Opaque Quality Multi Color Color
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SKU218504
Gem TypeOpal - Boulder Opal
Quantity in stock1 item(s) available
ColorMulti Color
ShapeFancy
Size/Dimension (L x W)19.98 x 10.16 x 4.14 mm
Weight7.48 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)