## 28.15 Ct Natural Ammolite Opal -Like Organic Doublet OVAL Cut Rare Treated Gemstone ##. ( OVAL Cut Beautiful Gemstone). (Gemstone is Translucent And Loupe Clean). Gemstone other full information can be found in included certificate.
7.71 ct Charming Fancy (21 x 11 mm) Multi Color Australian Koroit Boulder Opal
7.71 ct Charming Fancy Shape (21 x 11 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.