This listing is for two polished, solid, natural Australian opals cut from the same stone. Video can be viewed here. Solid / doublet / triplet opal - solid.Opal type - Boulder (Queensland origin). Directional flashes, as illustrated in the video. Size: As specified with listing. The item "18 Carat Pair of Solid Natural Australian Green/Red Boulder Opals" is in sale since Monday, January 14, 2019. This item is in the category "Jewellery & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Boulder Opals".2007" and is located in Ryde, NSW. This item can be shipped worldwide.