This Opal has a dramatic play of colour on movement, glowing with brilliant orange and bright green colours, a touch of blue, from a base colour of bright turquoise green. The solid Boulder Opal is set with 18ct yellow gold with diamonds. The freeform shaped opal measures 10mm x 8mm at the widest point. The ring is a size 6.5, opal weight 2.11 ct, gold 4.14gm, diamonds 0.038ct.