Bright colours of red, orange, blue and green in a doublet opal., made from Alan's Rise Field in Coober Pedy, in a triangular shape . Opal size is 16.3 x 13.1 ct with a total weight of 4.55 ct and is highlighted with a 5 pt diamond. All handmade in 9Kt white gold. Total weight is 3.1 gram.