–> 6.40 ct Fair Fancy Cabochon Shape (12 x 11 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone Rare Stone! 100% Natural Multi Color Orgin From Australia 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Boulder Opal Color Multi Color Shape Fancy Cabochon Size(LxWxD) 12.12 x 10.99 x 5.11 mm Weight 6.40 ct Hardness 6.5 Luster Excellent Clarity Opaque Treatment: 100% Natural Origin Australia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 Clarity Scale IF VVS VS SI I1 Internally flawless; free of inclusions Very, very slight inclusions; inclusions barely seen under 10x magnification Very slight inclusions; inclusions can be seen under 10x magnification Slightly included; small inclusions seen by naked eye Included; inclusions seen with naked eye Track Page Views WithAuctiva’s Counter
