Shaped round overlapping circles brooch in white and yellow diamond, sapphire, ruby and emerald

Centred by a principal round brilliant cut white diamonds, in an open frame of calibre cut sapphires with four round cut yellow diamond accent stones, the sapphire circle overlapping outer circles set with calibre cut rubies, emeralds and circular cut yellow diamonds, white diamond crescents in between, the gallery with engraved scroll band, mounted in platinum and gold
Weight: 15g