7.83 ct Eye-catching Oval Cabochon Shape (21 x 10 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Shape Oval Cabochon. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.
A collection of love and memories woven into the story of you.