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A yellow and white gold brooch, featuring one 6.8 x 18 mm, oval cabochon cut opal, of reported weight 6.82 carats, in a 4x claw setting, accented with 4x round brilliant cut diamonds of reported total weight .05 carats, H coloiur, SI1 clarity, of finished

10ct yellow gold solid opal brooch. Hand-made 60s/70s opal brooch 12.3 x 13.4 mm solid opal with predominant broad green flash. R>W8.13g (approx.)

18ct yellow & white gold opal & diamond ring. Hand-made basket cluster ring set with nineteen 10 mm crystal opal, with predominantly blue/green play of colour surrounded with 20 round brilliant cut diamonds of good colour and clarity. Diamonds approx.1.00c

9ct yellow gold garnet and opal ring. Eight 4 mm garnets around, eight 6 mm white opal. Garnet approx. 3.00ct (W3.85g)

Fancy faceted belcher link bracelet with 6 Hearts and rolled gold bolt ring clasp. Includes 9ct hallmarked 1902 padlock heart with 3 stone inlay, 9ct set with turquoise & half pearls, 9ct opal doublet, Duggan & Shaffer, Melb. 15ct set with opals (1 missing

18ct single black opal dress ring, rub-over oblong matrix opal with four baguette and princess cut shoulder diamonds, ring size O

18ct 19 stone opal and diamond cluster ring, central oval cabochon fiery opal crystal approx 2,66cts with old European cut diamonds surrounding all claw set on ribbed shoulders, ring size P, '21 retail value $7,490

Victorian 14ct diamond opal and sapphire Bug bar brooch, body set with sapphire and opal with rose cut diamonds to the wings and highlighted with end diamonds

14ct opal brooch/pendant, single beautiful vibrant blue/green fan shape opal, possibly boulder in plain rub-over frame (opal is showing cracks)

New Zealand Colonial 15ct milk opal and six stone diamond brooch, central cabochon white opal approx 6.15cts with fiery orange flecks, open circle frame supported with six old single cut diamonds, stamped 15ct with possible original labeled G Coates Co Ltd

Australian Colonial 15ct single opal bar brooch, large single oval cabochon white opal approx 13.80cts tgw, hallmarked 15ct Rowland for John Rowland of Melbourne C1890 6 cm length

Opal, South Sea pearl and diamond 'Embrace the Sea' necklace, Paspaley, 2005 the flexible Collar comprised of 47 South Sea cultured semi-Baroque pearls highlighted by nine variously shaped crystal opals together weighing 131.69 carats and highlighted by br

14ct white gold opal and diamond halo ring, a 2.53ct oval opal cabochon (strong plays of green violet, orange and yellow), bezel set and surrounded by a halo of thirty-two round brilliant cut diamonds (Colour J-K, Clarity SI2- I2), with a single diamond se

A quality early 20th century 18ct yellow and multiple gem set bee brooch, elegantly modelled with colourful cabochon opal set abdomen, facetted oval 'intense blue' 0.81ct sapphire set thorax, each wing with two rows of brilliant cut diamonds, ruby eyes. Sa

Australian white opal pendant, 9ct yellow gold set in a contemporary design, claw set with large natural white opal, stamped '9ct', 4.20 grams, length 5 cm

Opal triplet ring, 18ct yellow gold geometric design, stamped '18ct', 19 grams, size X

Vintage Australian opal triplet & 10ct white gold brooch, marked 10k. Approx weight 5.22 grams

An antique Australian opal chip and yellow gold double bar brooch, housed in a fitted and branded box 'Scott & Wehrle Jewellers, Sydney', 19th century, 5.2 cm wide

A vintage 9ct yellow gold and opal doublet pendant, 3 cm high,

A polished boulder opal pendant mounted in 9ct yellow gold, 3 cm high overall

A solid black opal pendant set in 9ct yellow gold, 2 cm high

A vintage 9ct yellow gold and opal doublet ring, stamped '9ct', 4 grams

A solid white opal pendant on 9ct yellow gold mount, 2nd half 20th century, 2.5 cm high overall

A vintage 9ct yellow gold and opal brooch, circa 1970s, stamped '9k', 3.3 cm wide, 6.9 grams

A 9ct yellow gold and opal doublet brooch with Australian map pendant, 20th century, 5 cm wide

An antique 9ct gold and opal doublet pendant, early 20th century, 3.5 cm high, 2.3 grams

An Art Nouveau 9ct gold and opal doublet bar brooch, early 20th century, 5.7 cm wide, 4 grams total

An Australian silver and solid Coober Pedy white opal brooch, early 20th century, 3 cm high overall

Opal and diamond ring, set with an oval shaped opal measuring approximately 14.78 x 13.10 x 5.26 mm, set in a textured mount, estimated total diamond weight 0.80 carats, signed Kevin, mounted in 14ct gold, weight 12.4gm, ring size Q.

Large opal brooch, designed as a floral bouquet composed of seven oval opal doublet plaques, two with blue green play of colour, five displaying extensive multi-colour fire, mounted in gold, weight 42.9gm, length 11 cm, width 8 cm.

Opal and diamond ring, set with an oval opal measuring approximately 24.15 x 20.35 x 5.55 mm, accented with round brilliant-cut diamonds, estimated total diamond weight 0.35 carats, mounted in gold, weight 31gm, ring size S.

A solid black opal bar brooch by Hardy Brothers, oval solid black opal cut en cabochon displaying strong play of colours of red and orange measuring 10.5 x 6 mm, set in a platinum and gold bar brooch stamped H.B. Total weight 3.1gms.

A suite of gold and opal jewellery, comprising a tie pin and pair of cufflinks, each set with an opal doublet and crafted in 9ct rose gold.

A 15ct gold Victorian opal ruby and pearl necklace; featuring a solid white oval opal of approx. 13.8ct surrounded by 33 round cut rubies totalling approx. 2.5ct in a reeded frame surmounting a drop shape solid white opal of approx. 3.2ct, suspended from a

A 9ct gold opal ring; boat shaped top claw set with a 6 x 7.8 mm opal triplet on a bypass shank, size at top 18 x 12 mm, size S, wt. 3.8g.

An 18ct gold opal and diamond pendant; bezel set with an 11 x 5 mm oval cabochon crystal opal surmounted by a 3 round brilliant cut diamond set bale, wt. 1.08g, with metal chain.

Four silver necklace; a multi colour stone set halo pendant, size 27 x 27 mm, on a cable chain to a bolt ring clasp, length 45 cm; a 2.4 mm wide enlongated link chain to a bolt ring clasp, length 54 cm; star and crescent moon set with synthetic opal on a p

A 14ct gold opal and diamond ring; claw set with an oval cabochon solid crystal opal with good colour display to a round brilliant cut diamond on each shoulder, 8.1 mm, size Q, wt. 1.83g.

14ct gold opal and diamond ring, tear drop shaped opal in contemporary setting with row of multiple diamonds

18ct yellow gold opal set pendant, set with one Class 'A' free form solid opal with split wire scroll attached side of pendant with 9ct yellow gold chain.

18ct yellow gold opal and diamond ring, set with solid white opal 3.1 mm surrounded by round brilliant cut diamonds I-SI2 clarity

A 14k white gold black opal and diamond ring, the large 4.94ct oval cabochon black opal displaying play of colour, framed by a halo of diamonds, further diamonds set to the cross-over shoulders. Valuation and AIG gem report available.

A stylish early 20th century 9ct yellow gold and opal pendant and earring set, the oval opal doublets in gold frames with open diamond form bars. Screw fittings. 13gms.

A c1900 gold and opal horseshoe brooch, set with 11 graduating oval cabochon opals, one with small chip, spaced by 20 small old mine cut diamonds. Height 2.8 cm.

18ct yellow and white gold handmade brooch, featuring an oval cabochon cut crystal opal of estimated 3.20 carats, in a spray ribbon design accented with five round brilliant cut diamonds of estimated total weight .19 carats. Total weight 4.44 grams. Length

Australian graduated solid opal and gold bracelet, mid 20th century, unmarked gold, featuring eleven graduated solid opals of elliptical form, largest 14 mm length, smallest 8 mm length, total weight 5.25gm, total length 17 cm

English 9ct gold solid opal ring, hallmarked London, 1960, set with central rectangular solid white opal stone, total weight 4.50gm, size S/T

Pair ladies gold and solid white opal earrings, unmarked gold, with an oval shaped white opal to the post terminal and suspending a larger solid white opal, in four prong setting with gold foliate mounts, total weight 3.23gm, drop 2.4 cm

14ct yellow gold and white opal brooch, marked 585, with makers mark 'Kp', of elongated diamond form in a textured and splintered finish, set with central cabochon cut solid white opal, total weight 6.38gm, length 6 cm

A pair of Scandia silver opal clip earrings, each in the shape of an artists palette with brush, set with opal fragments to metal clip fittings, size 32 x 22.5 mm, wt. 8.88g.

A 9ct gold amethyst and opal pendant, wire work frames centring a round cut amethyst to surround set with cabochon opals and suspending a pear cut amethyst drop to a ring bale, length 29 mm, wt. 1.02g.

An 18ct gold opal and diamond pendant, featuring a 15.5 x 8.6 mm triangular form black opal of approx. 5.20ct to surround channel set with 22 round brilliant cut diamonds totalling approx. 0.20ct, size 30 x 14.5 mm, wt. 4.75g.

Poul Henningsen (Danish, 1894-1967), Ph 4/3 table lamp, designed 1931, manufactured by Louis Poulsen, polished chrome base and stem with white opal glass shades, retains manufacturer's label, shade cracked (A/F), height 54 cm diameter 45 cm. Provenance: Pr

Poul Henningsen (Danish, 1894-1967), Ph 4/3 table lamp, designed 1931, manufactured by Louis Poulsen, polished chrome base and stem with white opal glass shades, retains manufacturer's label, height 54 cm diameter 45 cm. Provenance: Private Collection, Syd

18ct gold gemstone row ring, tradition thick 18ct yellow gold setting with five row of cabochon cut sapphires, aquamarine, opal. Size N

Victorian opal and seed pearl Brooch/Tie pin, two-tone with central Lightning Ridge opal

9ct Lightning Ridge free form opal ring, large central deep blue opal with green flecks set in thick yellow gold setting

White gold opal ring, 18ct white gold with opal and diamonds

Vintage gold and opal dress ring, 9ct yellow gold with four inset raised opals, Cooper Pedy with bright green and flashes of blue/purples

14ct gold and opal necklace, comprising one hundred eleven graduated round opal beads measuring approximately 2.89 mm - 5.61 mm, completed by an opal and diamond set clasp in 14ct gold, length approximately 430 mm.

Platinum, opal and diamond ring, centring a collet-set oval opal cut en cabochon weighing approximately 2.80 carats, within a surround of brilliant and baguette-cut diamonds to diamond set shoulders, the diamonds together weighing approximately 0.45 carats

9ct gold, silver, opal, pearl and diamond pendant, circa 1900, the pendant of Art Nouveau open design, set with two pear shaped cabochon-cut opals together weighing approximately 5.07 carats with swag detail further embellished with single-cut diamond and

18ct white gold, opal and diamond necklace, centring an oval opal cut en cabochon weighing approximately 12.0 carats, within a surround of twenty-six claw-set brilliant-cut diamonds together weighing approximately 2.30 carats, length approximately 40 mm, t

A vintage 9ct rose gold opal and diamond brooch, the floral spray claw set with six oval cabochon opals, the stems collar with three bead set diamonds. Provenance: Ex. Webb's auction 'Worn at the Ritz' 2019. 7.95gm.

A pair of Art Deco 18ct white gold, opal triplet and diamond earrings, the oval opals 14 x 10 mm supported from angled arched diamond set frames suspended from a single diamond. Hooks for pierced ears. The 22 old cut diamonds of 0.40ct.

A 14ct yellow gold and opal pendant, the oval cabochon opal with good play of colour, plain double lobed frame.

Antique 10ct yellow gold opal large floral spray brooch, the five doublets as flower heads, secured by a bow.

A pair of vintage 15ct yellow gold, opal doublet earrings, oval panels in circular settings, screw on fittings. One with small chipping to edge.

An Art Deco platinum, opal and diamond pendant, on platinum chain, the oval opal doublet framed by bead set diamonds, further diamonds to the mount supporting the chain. The 29 diamonds of TDW. 0.40ct. The opal mount converted from a watch case.

An Art Deco platinum, diamond and opal pendant, the handmade platinum mount with an oval cabochon gem opal of 1.44ct with N6 body tone, with colourful flash-fire pattern play; the mount and bale highlighted with nine old cut, grain set diamonds. 38 x 11 mm

A pair natural opal gemstones, cabochon pear cut, each stone 2.10ct, suitable for earrings. AIG report available.

Australian mid c. Opal doublet set 9ct rose gold ear clips. Marked 9ct to the screw backs, oval cut size 12 x 10 mm, weight 3.80 grams

A 9ct gold boulder opal ring, set with a kidney shape opal mostly blue, green and some orange colours, size at top 16 x 12 mm, size I, wt. 3.49g.

A 9ct gold opal ring, featuring an oval cabochon solid white opal with good colour range to split shoulders, width at top 8.3 mm, size M, wt. 2.03g.

A pair of 9ct rose gold opal earrings, each an oval cabochon Ethiopian opal with good colour to a bean shape stud surmount, size 17 x 8.2 mm, wt. 4.28g.

A 14ct gold opal and diamond ring, centring an oval cabochon solid crystal opal of approx. 5.01ct with good rolling colour display to surround set with 24 round brilliant cut diamonds totalling approx. 0.35ct, size at top 16 x 14 mm, size P, wt. 4.46g.

A vintage 9ct rose gold solid white crystal opal ring, one oval opal, 7 x 5 mm mounted in a rose gold ring, size I Wt 1.4 grams

An 18ct yellow gold solid white opal ring, one oval cabochon opal, 10ct, white with red & green plat of colour mounted in a yellow gold ring, size m Wt 6.3 gram

Verner Panton (Danish, 1926-1998), Panthella table lamp, designed 1971, manufactured by Louis Poulsen, white opal acrylic, retains manufacturer's sticker to base height 70 cm diameter 51.5 cm. Provenance: Private Collection, Denmark.

Verner Panton (Danish, 1926-1998), Panthella floor lamp, c. 1971, manufactured by Louis Poulsen, white opal acrylic, retains maunfacturer's decal label height 130 cm. Provenance: Private Collection, Denmark.

Edwardian 18ct three stone opal and diamond bridge ring, oval cabochon opals interspaced with four natural single cut diamonds hallmarked Chester circa 1916, ring size Q

An 18ct white gold wedding band (3.5 grams), two antique sterling silver Claddagh rings, an opal and silver ring, a garnet and silver eternity ring, and a silver and marcasite ring, 19th and 20th century, (6 items),

A vintage 9ct yellow gold and opal doublet ring, circa 1980, stamped '9ct', 3 grams

A yellow gold ring set with an oval opal doublet flanked by four white brilliant cut diamonds on each shoulder, circa 1970, 4.6 grams total

A 9ct yellow gold and opal triplet tie pin, circa 1970, 1.2 cm wide. Accompanied by an opal gallery of Melbourne valuation for $1,220

A stunning 30ct natural solid boulder opal pendant set in 9ct yellow gold mount, circa 1970s, 5 cm high overall, 15.3 grams total. Accompanied by an opal gallery of Melbourne valuation for $15,850

An antique 9ct rose gold ring set with oval blue/green opal, circa 1900, stamped '9ct', 3.5 grams total

An impressive antique 9ct rose gold bangle set with a superb solid opal approximately 15-20ct, (3 x 1 cm), late 19th century, stamped '9C', the bangle 6.5 cm wide, 14.7 grams total

18ct yellow gold opal pendant, lighting ridge central opal with red, blue and purple flecks with central diamond

14ct white gold opal and diamond halo Statement ring, the centre features one oval cabochon cut, white natural solid opal (5.04ct, red-yellow-orange-green-blue colour play), 4 claw set, with 74 round brilliant cut diamonds (0.89ct TDW), bead set. Ring size

A 14ct gold opal pendant necklace; featuring a free form cabochon solid white opal with good rolling colours, size 31 x 18 mm on an 18ct cable chain to a bolt ring claps, length 39 cm. Wt. 9.06g.

An 18ct gold opal and diamond brooch; textured organic strips set with an oval solid black opal of approx. 2.00ct, with mainly violet green colour surrounded by 3 old Europen cut diamonds totalling approx. 0.40ct, size 49 x 28 mm, wt. 13.2g.

Opal and diamond cluster ring, set with a fine natural Lightning Ridge opal crystal surrounded by round brilliant cut diamonds and diamonds down the shank, set in 18ct white gold and platinum, 5.4grams, size Q

14ct gold, natural white opal and diamond pendant necklace, a 5.90ct free form cabochon natural white opal (colour play of blue/green/orange and red) bezel set and surrounded by round brilliant cut diamonds with a further six diamonds embellishing the chai

Paspaley South Sea pearl, Keshi pearl, opal and diamond 'Lavalier Opal Hero' pendant necklace, designed as a sautoir, composed of a pair of trace link chains gathered to the front by a white gold slide pave-set with brilliant-cut diamonds terminating in a

Vintage Gucci silver bracelet having a stylized Gucci link and being 18.5 cm long is stamped 925 Gucci total weight: 71,6 grams. Striking opal earrings each stud is set with 18 drop shaped opals and small diamond. Mounted in 18ct yellow gold. Weight 24.0 g