Estate Opal and Diamond Ring. 14k, white gold mounting features a vibrant 6 carat opal with flashes of green, blue, violet and red. The opal is bezel-set and surrounded with a high polished frame containing 0.75 carats of evenly spaced prong-set brilliant-cut diamonds.
An absolutely magnificent black opal and diamond cluster ring mounted in platinum. Art Deco ring circa 1925 set to centre with an opal weighing approximately 13.00 carats, in a six double claw setting. Set to either shoulder with a close set baguette cut diamond, remainder of diamond border is made up of twenty-six ‘eight cut’ stones in grain settings. The play of colour in this opal is outstanding. Berganza.
A late 19th century opal and diamond pendant necklace, circa 1890. Composed of a graduated row of oval opal cabochons each within a closed back setting, set to the centre with two triangular-shaped opals suspending a knifewire swag with three old brilliant-cut diamond highlights and opal swing drop below