A collection of opal doublet set jewellery and other, comprising three doublet set pieces, one 9ct yellow gold, oval in shape, set with a black opal doublet of intense spectral colours, bezel set in a closed frame with open back, fitted with bail, the second 9ct yellow gold bar brooch set with oval black opal doublet, the third 9ct gold of abstract form set with black opal triplet and finally a sterling silver, oval in shape pendant, set with a imitation black opal