An Edwardian Opal and Diamond Brooch in Platinum
An Opal and Diamond Brooch, circa 1910, the oval cabochon-cut black opal within a pierced elongated frame set with old brilliant-cut diamonds.
Brooch pin fitting
Unmarked tests as platinum
Measures 6.7cm x 1.1cm
Total weight 7.6gms
Opal estimated to weigh 1.3 carats
Total weight of diamonds approximately 0.8 carats