A bar brooch set with an opal and diamonds
central rubover set round cabochon opal, 5.8mm, surrounded by six rubover set old cut diamonds each at the end of a decorative 'petal' loop, pin and hook fitting with a later safety chain, length 5cm, unmarked yellow and white metal tested as 15ct gold and platinum with a base metal safety chain, we
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central rubover set round cabochon opal, 5.8mm, surrounded by six rubover set old cut diamonds each at the end of a decorative 'petal' loop, pin and hook fitting with a later safety chain, length 5cm, unmarked yellow and white metal tested as 15ct gold and platinum with a base metal safety chain, we
