3.45 ct Super-Excellent Oval Cabochon (12 x 10 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone. History – Opal is a semi-transparent solidified mineral composed of silicon and water. Black Opal refers to the dark background color of the stone behind the play of color.
12.01 carat Natural Turquoise Mountain Cabochon 24.6 x 15.8 x 3.7mm TC-137 GEM
Almost all of my pieces are handmade, so they will not be perfect. If an item is improperly described it would not be intentional.
12.01 ct Fancy Shape (21 x 16 mm) Multi Color Australian Koroit Boulder Opal
–> 12.01 ct Awe-inspiring Fancy Shape (21 x 16 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone Rare Stone! Unheated / Untreated Multi Color Orgin From Australia 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Boulder Opal Color Multi Color Shape Fancy Size(LxWxD) 21.25 x 15.73 x 4.15 mm Weight 12.01 ct Hardness 6.5 Luster Excellent Clarity Translucent Treatment: Unheated / Untreated 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
6.44 ct Pretty Fancy (15.55 x 12.01mm) Natural Australian Boulder Opal
6.44 ct Pretty Fancy Shape (16 x 12 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.