Australian boulder opal from Queensland. Cut and polished by ourselves. Very beautiful blue/green/yellow colors. Weight: 5.08 cents Stone size: 20*8*4mm All of our opals are 100% natural and solid!! NO doublets or triplets in our store!!! It is extremely difficult to find quality opals at competitive prices in Europe and particularly in France. My Black Opal makes this possible thanks to partnerships in Australia and the work we do ourselves on the cutting of our stones. Whether for a collection, an investment, a piece of jewelry, we hope you find the opal of your dreams! If you have a jewelry project with one of our stones, do not hesitate to contact us, we have jewelry partners for all tastes and we will be delighted to create the jewelry you want.