All set into a basket of 9k yellow gold. This ring can be resized as it is a solitaire but it comes in a size M or US 6.5.The authenticity certificate is included. The item "Huge 16mm x 12mm Australian Boulder Opal Gold Ring" is in sale since Sunday, August 4, 2019. This item is in the category "Jewellery & Watches\Fine Jewellery\Fine Rings\Gemstone". The seller is "meannie60" and is located in Ormskirk. This item can be shipped worldwide.