An 18 Karat Gold, Rock Crystal, Opal and Diamond Brooch, Vhernier, consisting of a transparent carved rock crystal in a stylized dolphin motif with stippled finish to resemble skin, the crystal is set on a black opal base and accented with white gold fins pave set with numerous round brilliant cut diamonds weighing approximately 0.31 carat total, yellow gold backing and brooch fittings.Stamp: 19B 750 VHERNIER (Italian maker's mark 3229 AL). 10.40 dwts.