28.09 ct Exquisite Fancy Cabochon Shape (28 x 20 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone

Special Price $47.99 Regular Price $79.99
In stock
SKU
205737
Rare Stone! Unheated / Untreated Play of Colors Orgin From Australia
(or)
SKU 205737
Gem Type Opal - Boulder Opal
Quantity in stock 1 item(s) available
Color Play of Colors
Grade AAA
Shape Fancy Cabochon
Size/Dimension (L x W) 27.71 x 19.54 x 7.03 mm
Weight 28.09 cts
Clarity Opaque
Number of Pieces 1
Luster Good
Origin Australia
Treatment Unheated / Untreated
Hardness 6.5
Refractive Index 1.37-1.47
Specific Gravity 2.1
Chemical Composition SiO2.nH2O
FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 I1 I2 I3
Flawless-
Internally Flawless
Very Very Slightly Imperfect Very Slightly Imperfect Slightly Imperfect Imperfect