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Gemstone Properties
Gem type Opal Weight 3,31ct Size 8.2 * 12.8 * 5.5 mm. Clarity Translucent Origin Australia Treatment None Hardness 5 - 6 Comment
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Clarity table
IF VVS1 VVS2 VS1 VS2 SI1 SI2 I1 I2 I3
IF/Internally Flawless = No inclusions visible, by an expert at 10X magnification.
VVS1-VVS2 = Very, very slight inclusions very difficult for an expert to find under 10X.
VS1-VS2 = Very slight inclusions difficult for an expert to find under 10X.
SI1-SI2 = Noticeable, relatively easy to find under 10X. Not visible without magnification in a face-up direction.
I1-I3 = Obvious under 10X, may be visible to the unaided eye, I3 = inclusions may affect the stones durability.
