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Lot 92

An opal and diamond ring, the opal millegrain set with old circular-cut diamonds to the shoulders in silver on gold, size L, case

Lot 611

An opal and diamond cluster ring, the oval opal cabochon set within a surround of old cushion-shaped diamonds in silver on gold, with detachable ring section in gold, size Q 1/2

Lot 213

A pair of opal and diamond drop earrings, each pear-shaped cabochon opal is set within a surround of fifteen round brilliant-cut diamonds, and suspended from a further diamond in silver and gold, 2.4cm long

Lot 585

An Art Deco opal and diamond cluster ring, the oval-shaped opal set within a surround of small circualr-cut diamond and two tapered baguette-shaped diamonds to each shoulder in adjustable platinum and white gold mount, size R approx.

Lot 126

A gem-set gold scroll pendant, set with a ruby and diamond flowerhead and suspending an opal in yellow gold, pendant 6cm long, chain 44cm long

Lot 52

A pair of opal bead-mounted gold cufflinks, each opal bead contained in an 18ct yellow gold cage work mount, French control mark and stamped with with maker's mark MG Provenance: previously sold Christie's Paris, Alberto Pinto Collection, September 2017, ex lot 988.

Lot 64

An opal bead necklace, the graduated opal beads alternately-set with cultured pearls and rock crystal rondels, with a diamond-set gold clasp, 90cm long

Lot 586

An Art Deco opal and diamond ring, the solid black opal within shoulders set with baguette-shaped and circular-cut diamonds in platinum, size M

Lot 447

An opal and diamond cluster ring, the solid white opal cabochon is set within a surround of single-cut diamonds in platinum and gold, size M 1/2

Lot 392

A black opal and diamond ring, the oval-shaped solid black opal is set within graduated lines of circular-cut and Asscher-cut shoulder diamonds in platinum and yellow gold, size N ½

Lot 226

An opal and diamond cluster ring, the opal cabochon set within an octagonal surround of round brilliant-cut diamonds in white gold, size Q

Lot 140

A pair of opal and diamond heart earrings, the opal and diamond clusters set on gold hearts suspend from a further diamond cluster in silver and gold, 4.2cm high including fittings

Lot 211

An opal and diamond ring by Geoffrey Rowlandson, the abstract carved blue common opal mounted with gold straps set with round brilliant-cut diamonds in 18ct gold, maker's mark, London hallmarks for 2001, size R Geoffrey Rowlandson was born in 1931 into a family of fashion and jewellery designers. The Rowlandson Company began as a means to create bespoke classic jewellery and twenty years ago the Rowlandson Unique Collection was established to create original and innovative pieces of jewellery. Geoffrey's talents were recognised by the Worshipful Company of Goldsmith, earning him 'Jewellery Designer of the Year' twice, 1998-9 and 2002-3, as well as numerous commended awards including 'Me and My Shadow' in 2002 and 'The Royal Christening' in 2014. The Victoria & Albert Museum exhibited his 'Fire and Ice' Tiara (Lot 676) in 2002. Three of his pieces including 'Grand Jetι' were again selected for their 2013 Pearl exhibition. More recently in 2014 The Royal Christening brooch was awarded a commendation by The Worshipful Company of Goldsmiths.

Lot 139

An Edwardian opal and diamond brooch, the oval opal cabochon is set within a surround of rose-cut diamonds and further rectangular surround of diamonds in platinum and gold, 2.5cm wide, case

Lot 440

A heart-shaped opal and diamond cluster ring, the solid white opal heart-shaped cabochon is set within a surround of old cushion-shaped diamonds in gold, N ½

Lot 1543

A late 20th century 9ct gold black opal doublet dress ring, setting height 21.5mm, size O, 4.2gGood original condition, settings lightly abraded, hallmarks slightly rubbed, was stamped 375

Lot 1589

An early 20th century 18ct gold 7-stone cabochon opal and rose-cut diamond half hoop ring, maker's marks JHW, hallmarks Birmingham 1908, setting height 11mm, size N, 3.4gGood overall condition, all stones present, opals are slightly hazy and surface abraded with central stone displaying mostly reds and yellows, diamonds have surface abrasions, settings have one join mark on either shoulder and back of shank has a small dent, hallmarks clear, stamped 18

Lot 1520

A modern natural opal pendant necklace, on turquoise malachite and gold bead necklace, necklace length 40cm, 13.5gVery good original condition, no damage or repair, clasp working, marks clear, engraved 925

Lot 1504

A late 20th century 9ct gold cabochon opal dress ring, setting height 17.7mm, size O, 3.4gVery good original condition, opal has a very uniform play of colour with reds greens and blues, settings nicely polished, hallmarks clear, stamped 375

Lot 1128

A large opal "yellow" diamond ruby and diamond figural bug pendant/brooch, set with large cabochon opal, old-cut and rose-cut diamond wings and body with cabochon ruby eyes, in unmarked gold settings, wingspan 46.4mm, 10.2gGood overall condition, three stones missing, opal has a good play of colour with mostly greens and blues and light surface abrasions, most diamonds have small surface chips and abrasions which are only visible through loupe, coloured diamonds have a slightly greenish tint and unsure if they are naturally coloured or treated, settings are lightly abraded all over, brooch fitting working, unmarked

Lot 1378

A 22ct gold garnet and pearl cluster dress ring, setting height 8.9mm, size M, 2.9g, and a 9ct cabochon opal and garnet cluster ring, size Q, 2.5g22ct ring is missing several pearls and garnet has abraded facet edges, settings also abraded, marks clear, stamped 22, 9ct ring in good original condition, settings are abraded, marks slightly rubbed, engraved 9ct

Lot 1261

A group of various Antique and Vintage stickpins, gemstones include ruby opal and banded agateGenerally quite worn overall, all stones present, all unmarked

Lot 1542

An early 20th century unmarked gold cabochon fire opal and white sapphire pendant, opal length 17.1mm, 4.2gGood overall condition, opal is quite translucent with mainly red and blue play of colour, settings are abraded all over with a few splits on the back of the settings, unmarked

Lot 1389

A 9ct gold amethyst abstract ring, size O, and a 9ct cabochon opal ring, size P, 6.8g total (2)Both in very good original condition, no damage or repairs, lightly abraded all over, marks clear, stamped 375

Lot 1590

An early 20th century 18ct gold 7-stone cabochon opal and diamond half hoop ring, hallmarks London 1920, setting height 6.2mm, size O, 3.2gGood overall condition, all stones present, one flanking opal has a large chip, settings lightly abraded, marks clear, stamped 18

Lot 1304

A handmade unmarked gold cabochon black opal and diamond cluster pendant, 5.9ct opal suspended from a white gold rope twist chain with diamond cluster bow bale, pendant height 47.7mm, 6.4gGood overall condition, opal has two large natural cloud flaws and mainly displaying green and blue play of colour, diamonds are bright and white, settings nicely polished, unmarked but tests as 9ct gold

Lot 1206

An early 20th century 9ct gold graduated 5-stone cabochon opal half-hoop ring, hallmarks Chester 1912, setting height 6.5mm, size R/S, 1.9gGood overall condition, all stones present with general surface abrasions, settings slightly rubbed on high points, lightly abraded all over with a few small dents on the back of the shank, hallmarks are quite rubbed, stamped 375

Lot 1515

4 9ct gold opal dress rings, sizes G, K x 2, and Q, 7.1g total (4)All in very good original condition, settings nicely polished, marks clear, stamped 375

Lot 309

An opal and diamond pendant on white metal chain, the yellow metal mounted oval stone approx 2.3 cm x 1.5 cm, the graduated diamonds approx 0.1, 0.04 and 0.03 carat, chain approx 42 cm long, together with a Victorian 15 carat gold mounted graduated opal and diamond chip set brooch, the nine opals approx 0.5 carat-0.25 carat, 6.1 g, 5.4 cm long and a pair of ear studs, each approx 0.7 carat

Lot 111

A carved opal stick pin, modelled as a dogs head, within claw mount, the yellow metal pin not stamped, within boxProvenance: Property of a Titled EstateCondition report: A couple of small nibbles to the reverse of the Opal, general wear but no significant visible damage, wear to the box, refer to images

Lot 204

A 9k opal and garnet ring, size O, 3.1g

Lot 1258

A large modern 18ct gold black opal doublet and diamond modernist abstract pendant, textured naturalistic frame set with round brilliant-cut diamonds, pendant height excluding bale 83.4mm, 70.2gVery good original condition, no obvious damage or repair, lightly abraded all over and slightly worn on high points, all stones present, marks clear, stamped 750

Lot 1597

Various jewellery, including 9ct gold cabochon opal bar brooch, pair of 9ct amber earrings, pearl necklace etcGenerally good original condition, settings lightly abraded, marks slightly rubbed

Lot 1193

A 19th century unmarked gold ruby cabochon opal gem set cluster memorial ring, glass covered hair panel back with floral engraved shank and shoulders, setting height 11.2mm, size L, 2.2gGood overall condition, glass is cracked through the centre, all stones present and are generally surface abraded, both shoulder gem stones are quite discoloured and rubbed, shank slightly bent out of shape but still stable, unmarked

Lot 1445

A modern 9ct gold cabochon opal and diamond half hoop ring, setting height 8.4mm, size N, 2.2gVery good original condition, all stones present, no damage, settings nicely polished, marks clear, engraved 9k

Lot 281

14ct gold opal and diamond earrings. The earrings set with eleven marquise-cut opals, approx 6 x 3 mm each and approx 4 pts of dias, 25 x 18mm, and a yellow gold opal pendant, set with six marquise-cut opals approx 6 x 3mm, approx 8.2 gms, together with a yellow-metal opal pendant. 

Lot 348

Miscellaneous jewellery, including a 9ct gold diamond ring size L, 9ct gold diamond and sapphire ring size M+, a pair of 9ct gold garnet earrings, a 9ct gold cross pendant, a 9ct gold opal pendant on yellow metal chain, approx 8.5 gms together with a garnet, marcasite dress ring size R, agate and marcasite ring size O, blue and white stone ring size R, three pairs of silver earrings. 

Lot 298

14/15ct yellow gold opal and diamond pendant, set with 20 opals approx 5 x 3 mm and three 1 pts of dias, approx 3.4 gms. 

Lot 404

9ct gold opal ring, mm CPM, size L+, approx 4.7 gms

Lot 642

Opal & cubic zirconia sterling silver ring (box not incl)

Lot 643

Opal triplet ring in sterling silver (box not incl)

Lot 620

A silver opal and white stone set ring, L total weight 5.5g

Lot 629

Opal Cubic Zirconia ring in sterling silver (box not incl)

Lot 655

An attractive black opal and diamond brooch in 18 carat gold claw knife edge mount. Approx. 3.6 grams. Est. £200 - £250.

Lot 691

An opal single stone ring in rubover gold mount. Approx. 3 grams. Est. £50 - £80.

Lot 635

An 18 carat gold fire opal and diamond ring. Approx. 2.6 grams. Est. £50 - £60.

Lot 658

A good opal and gold brooch of swirl form to claw mount. Approx. 4.3 grams. Est. £120 - £150.

Lot 690Z

An Antique opal and diamond seven stone ring in claw mount. Approx. 2.9 grams. Est. £150 - £200.

Lot 692A

An 18 carat gold opal and diamond nine stone ring i claw mount. Approx. 4 grams. Est. £150 - £200.

Lot 496

A SILVER GILT RING MARKED 925 WITH THREE IN LINE OPAL STYLE STONES IN A PRESENTATION BOX

Lot 213

A Sterling silver ring, set with an opal and another 

Lot 123

An opal daisy ring, the small daisy cluster set with an arrangement of opals, in yellow metal setting, on a pierced basket, unmarked, ring size L½, unmarked, 0.7g all in.

Lot 116

A Victorian opal and diamond dress ring, with two opals, surrounded by old cut diamonds, the ring head 2.4cm high, on a white metal band, unmarked 18ct gold, ring size Q½, 4g all in.

Lot 49

A circular jade pendant with central bird and bamboo detail, set with 2 small garnets and an opal. Together with a pair of jade half hoop earrings, a tooth shaped quartz pendant and a silver gilt oval opalite pendant.

Lot 795

A yellow metal and opal bar brooch, together with a smaller yellow metal bar brooch with a white metal decoration to centre, four further yellow metal and steel pin brooches, a gilt metal horseshoe brooch, and a yellow metal tie pin. (qty)Condition report: Approximately 12 g combined.

Lot 828

An 18ct yellow gold, opal, and diamond ring, set with three opals interspersed with four diamond accents (one diamond loose), size M.Condition report: 3.5 grams

Lot 825

An opal and diamond cluster ring set with an oval cabochon black opal, within a double silvered halo border of diamonds, with diamonds to the shoulders, the shank marked 585, size O 1/2, 5.5 grams.

Lot 854

A yellow gold and opal ring, set with a round polished opal (stone a/f), multi-claw set, shank marked 18, size O, in a vintage Mappin & Webb ring box.Condition report: 3 g

Lot 1083

Agate oval brooch stamped 18 ct, measuring 4.5 x 3.6cm, an Edwardian bar brooch and an opal triplet drop necklace, testing as 9 ct and a rectangular openwork gilt metal pendant 18 ct gross weight 17.6 grams 9 ct gross weight 5.6 gramsopal triplet pendant measures approximately 4 x 1.3cm

Lot 1226

Pair of silver drop earrings, each set with an oval and round cabochon cut opal, mounted in silver, on a black triangular drop, stamped 925 JGP, together with three buttons stamped 9 ct, five gold plated buttons and two faux pearl necklaces and a sterling silver Tewor wristwatch 9ct gross weight 2.42 gramsWatch gross weight 39.40 gramsEwbank's cannot guarantee the working order of this lot or that they keep good time.

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