International Buyers - Please Note. Our reputation is paramount, without it we would not have been in business and the opal industry since 1967. We treat our customers with the respect we would like them to treat us with. The item "5.21ctw NATURAL GENUINE SOLID AUSTRALIAN LIGHTNING RIDGE OPAL STONE 13110" is in sale since Monday, August 3, 2015. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Black Opals".The seller is "$1-australian-opals" and is located in Nerang, QLD. This item can be shipped worldwide.