A platinum opal and diamond brooch, the large oval cabochon 24.6 x 18.0 x 7.2mm solid light crystal opal 4 double silver claw set at the centre, with one larger Old European cut and 4 smaller single cut diamonds individually millegrain bezel set between each geometric motif bead set with single cut diamonds, on a yellow gold hinged pin fitting.
Total weight: 12.7g
Estimated weight opal: 1 = 18.62ct total approximately
Estimated weight diamonds: Old European: 4 = 0.20ct total
Single cuts: 96 = 0.96ct total