82 A VINTAGE AUSTRALIAN SOLID OPAL AND DIAMOND RING The oval semi black opal cut en cabochon showing green, blue and purple colours, having single cut diamonds set to the shoulders, mounted in palladium and 18ct gold, signed Prouds, ring size N. $2,000-3,000
86 AN ANTIQUE OPAL AND DIAMOND BAR BROOCH The oval solid black opal cut en cabochon displaying red, green and blue colours, surrounded by fourteen single cut diamonds, set above a knife edge bar, mounted in 18ct white gold. $700-900
83 A SUITE OF ANTIQUE AUSTRALIAN BLACK OPAL JEWELLERY Comprising a pendant necklace, ring and earrings, all set with black opal cut en cabochon, mounted in 15ct gold and platinum, ring size K. $2,000-3,000
87 AN OPAL AND DIAMOND CLUSTER RING The round solid white opal cut en cabochon surrounded by round brilliant cut diamonds, mounted in 18ct white gold, ring size M. $1,200-1,800
84 AN OPAL AND DIAMOND RING The solid semi-black opal, cut en cabochon of 8.56cts, exhibiting all the spectral colours, in a border of round brilliant cut diamonds, mounted in 18ct white gold and platinum, ring size K. $14,000-18,000 85 AN OPAL AND DIAMOND PENDANT/BROOCH The pierced scroll frame set throughout with round brilliant cut diamonds, centrally suspended with a pear shaped solid white opal cut en cabochon displaying good play of colour, suspended to a trace chain, all mounted in 14ct gold. $1,800-2,600
88 AN OPAL AND DIAMOND PENDANT The free form polished solid white opal showing strong play of colour, mounted in a pierced diamond surround, mounted in 18ct gold. $4,000-6,000 89 AN OPAL AND DIAMOND CLUSTER RING The centrally set marquise shaped solid white opal cut en cabochon surrounded by a double row of diamonds totalling 2.50cts mounted in 18ct white gold, ring size P. $3,400-4,600
90 A PAIR OF TURQUOISE, SAPPHIRE AND KYANITE EARRINGS Each pierced geometric drop set with an oval turquoise cut en cabochon highlighted with two pear cut kyanites totalling 3.12cts and round blue sapphires totalling 1.65cts, all mounted in 18ct white gold. $3,600-4,600 91 AN IMPRESSIVE TURQUOISE, SAPPHIRE AND DIAMOND NECKLACE Featuring thirteen graduated pear shaped turquoise cut en cabochon, highlighted by round brilliant cut white and yellow diamonds and round blue sapphires cut en cabochon, and interspaced by further scroll set diamond detail, all mounted in 18ct gold. $15,000-20,000 92 A SAPPHIRE AND DIAMOND CLUSTER RING Of snowflake design, centrally set with a round blue sapphire of 2.30cts, offset with twenty round brilliant cut diamonds totalling 5.80cts, mounted in 18ct white gold, ring size O-P. $10,000-16,000
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