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An opal and diamond ring, featuring a 19 x 14.5 fine cabochon opal estimated as 11.00ct displaying good colour to shoulders each set with a tapered baguette diamond, size R, wt. 12.1g

9ct yellow gold and opal ring, weight: approx 2.68 grams, size: Q/8, as inspected

14ct gold, solid opal and ruby ring, weight: approx 4.07 grams, size: L/5-6

Good 18ct yellow gold and solid opal ring, weight: approx 7.6 grams, size: R-Q/8

An 18ct yellow gold solid black opal ring, one triangular shaped solid black opal 25.3x17.5mm with blue, green, red flashes of colour mounted in an 18ct yellow gold engraved ring., Wt 14.5grams

An opal Triplet ring, split band; 9ct gold. Ring size Q½. Weight 9.8g... An opal Triplet ring, split band; 9ct gold. Ring size Q 1/2. Weight 9.8g.

An opal ring, central white opal in an ornate pierced filagree mount; 9ct gold. Ring size N 1/2. Weight 5.3g.

An opal and diamond ring, pear shaped light opal set with three round brilliant cut diamonds totalling approx 0.20cts in an open scrolled textured gold setting; testing as 14ct gold. Handmade ring. Ring size P. Weight 9.6g.

Antique 9ct gold and solid opal ring, weight: approx 2.8 grams, size: N/6-7, hallmarked Birmingham

Antique 9ct gold and solid opal ring, weight: approx 2.2 grams, size: N/6-7, hallmarked Birmingham

An opal ring, the oval solid white opal cut en cabochon, mounted in rose gold. Condition: opal displays very good play of colour with flashes of red, orange and violet. Ring is stamped 9ct.

An opal ring, the oval solid white opal cut en cabochon, mounted in gold, ring size N. Condition: ring presents in good condition and stone is secure in its setting. Opal displays good play of colour with flashes of blue, green

An opal dress ring. 9ct yellow gold, made as an abstract solitaire ring set with a single trapeze shaped cabochon cut white opal of varied spectral colours, bezel set in a low open backed mount, finished on a simple band

18ct yellow gold and crystal opal ring weight: approx 2.6 grams, size W/11

Vintage 15ct yellow gold and 5 opal ring weight: 3.7 grams, sieze R/8-9

A solid black opal and diamond ring, the oval opal cut en cabochon surrounded by eight round brilliant cut diamonds, mounted in 18ct white gold, ring size K. Condition: ring presents in good condition. Opal displays good play of colour with flashes of blue

An opal and diamond ring, centrally set with a solid jelly opal cut en cabochon of 10.36cts with round brilliant, princess and baguette cut diamond set shoulders, mounted in 18ct white and yellow gold, ring size N. Condition: ring presents in as new condit

A solid white opal and diamond ring, the oval opal cut en cabochon bordered by round brilliant cut diamonds totalling 0.36cts, mounted in 18ct gold, ring size N. Condition: ring presents in very good condition. Opal measures 22.46mm x 16.61mm x 4.82mm esti

An antique opal and diamond ring, the oval solid white opal cut en cabochon, flanked by two old rose cut diamonds, mounted in 15ct gold, hallmarked, ring size S. Condition: ring presents in good condition and stones are secure in their settings. Shank has

A large opal and diamond ring, centrally set with a solid white opal cut en cabochon of 25.99cts, with round brilliant and baguette cut diamond surround, mounted in 18ct white gold, ring size N. Condition: ring presents in as new condition and stones are s

A black opal and diamond ring, set in 18ct white gold with a Lightning Ridge cabochon opal of 12.19 x 8.89mm with good colour display above shoulders set with 12 round brilliant cut diamond, size N

A vintage opal and diamond ring, collet set in 18ct gold with an oval crystal opal (10 x 6.4mm), to platinum shoulders set with 6 single cut diamonds, size M 1/2.

A 9ct gold opal ring, rub set with a 17.2 x 7.5mm opal doublet (af), size K, wt. 4.2g.

18ct yellow gold crystal opal & diamond ring, a natural crystal opal approximately 5.35cts freeform, shape with good play of colour within a border of accent diamonds 0.22cts to a half round band. Weight 6.1 grams,

An opal and diamond ring, cluster style featuring a solid oval black opal of 16.7 x 13mm surrounded by a border of round brilliant cut diamonds totalling approx 1.20cts. Ring size O1/2. Weight 10.1g.

A solid white opal and diamond ring, oval cut opal set with baguette diamond shoulders in 18ct white gold. Ring size M1/2. Weight 3.4g.

An impressive 18ct gold and opal diamond ring. having central opal surround by 10 diamonds.

18ct yellow gold and crystal opal ring weight approx 2.6 grams, size W/11

Vintage 9ct rose gold opal ring weight approx 3.1 grams, size L/5-6

9ct yellow gold and opal ring weight approx 2.8 grams, size M/6

Opal and diamond ring, claw-set with an opal measuring approximately 23.00 x 19.60mm framed by an open work surround decorated with four brilliant-cut diamonds, mounted in 18ct gold, gross weight approximately 14.85 grams, size N.

Opal and diamond ring, 18ct white and yellow gold, centring a white solid opal within an open work surround embellished with old cut diamonds, one diamond deficient and band (A/F), approx. Weight 5.4 grams

Opal ring, 9ct rose gold, centring an oval cabochon opal, approx. Weight 1.85 grams

A Lightning Ridge opal and diamond cluster ring, the oval solid white opal cut en cabochon measuring 19.00mm x 13.60mm, surrounded by round brilliant cut diamonds, mounted in 18ct white gold, ring size J.

A Lightning Ridge opal and diamond dress ring, the oval solid black opal cut en cabochon having diamond set leaves to the shoulders, mounted in 18ct gold, ring size L.

An opal and diamond ring, the solid black opal cut en cabochon surrounded by rose cut diamonds, mounted in 18ct gold, ring size N.

A 9ct yellow gold opal Triplet and diamond ring two oval triplet opals with twenty four round brilliant cut diamonds, 0.24ct in total. Total weight 9grams.

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