Lot 461 , An Edwardian opal and diamond bar brooch, early 20th century

An Edwardian opal and diamond bar brooch, early 20th century, centring on a cabochon opal measuring approximately 8.2 x 8.2 x 3.9mm, within a bar brooch set with circular-cut diamonds totalling approximately 0.45 carats, mounted in gold and platinum, length 5.6cm, stamped 18CT PLAT, gross weight approximately 5 grams
£400-600