Antique or later diamond brooch - price guide and values

Floral Ruby Diamond Rhodium Plated Handmade Brooch, 6.8g

Ruby diamond brooch, floral designed rhodium plated, paladium alloy diamond and ruby hand made brooch. Set with 1x approximate 0.56ct bright strong pinkish red ruby inclusion seen oval mixed cut, 1=0.40ct G colour SI clarity old European cut diamond, 16=…

Platinum Jade Diamond Moth Brooch with Carved Jade Detail

A platinum jade and diamond moth brooch, the carved jade moth set to a diamond encrusted frame, length 4 cm.

Emerald and diamond Art Deco brooch with black enamel

Art Deco emerald and diamond brooch, platinum, bezel set with a large oval carved fluted emerald, approx. 40.70cts, surrounded by a a fine frame of black enamel, framed by brilliant cut and single cut diamonds, roller catch pin and safety chain, unstamped…

Sapphire and Diamond Art Deco Brooch with GSL Report

Art Deco sapphire and diamond brooch, platinum, claw set with fine round brilliant cut diamonds and bezel set with two round brilliant cut diamonds, claw set in the centre with a fine natural 5.64ct cushion cut un-heat treated blue Ceylonese sapphire,…

Emerald and Diamond Gilt Metal Knot Brooch with Border

Emerald and diamond brooch, the gilt metal knot centred by a rectangular step-cut emerald measuring approximately 12.80 x 9.15 x 5.57 mm within a border of rose-cut diamonds, weight 28.9gm, measuring 4.8 x 3.7 cm.

Spray Design Diamond and Cultured Pearl Brooch, 2.30 Carats

Diamond and cultured pearl brooch, of spray design, set with round brilliant-cut diamonds, highlighted by a 115 mm cultured pearl, estimated total diamond weight 2.30 carats, weight 19.3gm, length 5 cm x width 4.5 cm.

Platinum and Diamond Bar Brooch with Old Cut Diamonds

Platinum and diamond bar brooch, the elongated oval openwork plaque millegrain-set with single, old European and old mine-cut diamond. Platinum, weight 10.8gm, measures 6 cm x 2 cm.

Opal and Diamond Flower Brooch with Retailers Box

Opal and diamond brooch, the stylised flower set with an opal crystal, measuring approximately 20.70 x 180 mm and accented with round brilliant, single and baguette-cut diamonds, accompanied by retailers box, weight 10.3gm, measuring 3.4 x 4 cm.

Sapphire and Diamond Bar Brooch with 7.63ct Ceylon Sapphire

Sapphire and diamond bar brooch, the sapphire weighing 7.63 carats set in a bar brooch with textured finish between pairs of round brilliant-cut diamonds, weighing 4.70gm, length 5.2 cm. Accompanied by GSL report no. AA69678/1 dated 4 September 2004,…

Floral Diamond Platinum Spray Brooch with 20 Carats Diamonds

Diamond platinum spray brooch, of floral design, set with round brilliant, square and baguette-cut diamonds, estimated total diamond weight 20 carats, stamped plat, weight 22.7gm, length 8 cm.

Victorian Opal and Diamond Crescent Brooch, 15ct Gold

Victorian 15ct 27 stone diamond and opal crescent brooch, oval cabochon opals interspaced with 18 old cushion cut diamonds set on fancy gallery, 30 mm length

Victorian Garnet and Diamond Leaf Brooch, 15ct, 19 Stones

Victorian 15ct 19 stone garnet and diamond brooch, fancy leaf design set with rose cut diamonds applied to four oval cabochon garnets, 40 mm length (two missing diamonds)

Victorian Turquoise Diamond Target Brooch with Locket, 15ct Gold

Victorian 15ct turquoise and single diamond target brooch, central dome of pave set turquoise and single cut diamond with reverse photo locket on fancy beaded frame, 35 mm length

Victorian Silver Diamond Paste Star Burst Brooch/Pendant, 31 Stones

Victorian silver 31 stone diamond paste star burst brooch/pendant, diamonds set in a twelve pointed star cluster, brooch clip removable 35 mm length

Platinum Art Deco Diamond Dress Clip/Brooch with 72 Stones

Art Deco period platinum 72 stone diamond dress Clip/Brooch, all bead claw set single cut and old mine cut diamonds, demountable clips on 9ct brooch mount 38 mm length, '20

18ct Diamond Cluster Bar Brooch with 0.47cts TDW, 60mm

18ct nine stone diamond cluster bar brooch, central cluster of round brilliant cut diamonds apporx. 0.47cts TDW, 60 mm length, '16

18ct Sapphire & Diamond Cluster Bar Brooch with Single Cut

18ct nine stone sapphire and diamond cluster bar brooch, central round medium blue sapphire with single cut diamond surround, 50 mm length,

Diamond and Ruby Antique Brooch with Millegrain Detail in Platinum

An antique diamond and ruby brooch, The cartouche shaped pierced panel centrally set with an old cut diamond of 0.35cts set within a frame of carre cut rubies, finished with twenty six single and old cut diamonds to the scalloped border. Millegrain set…

1930s Art Deco Platinum Diamond Lapel Brooch, 10.9g

An Art Deco platinum lapel brooch, pave set with brilliant and baguette cut white diamonds, circa 1930, 3.5 cm wide, 10.9 grams total

Silver Gilt Diamond Bee Brooch with Citrine and Rubies

An articulated silver gilt diamond and gemset Insect brooch, bee set with a pear chequerboard cut citrine abdomen to wings and thorax set with 39 table cut diamonds, and eyes set with two cabochon rubies, size 30 x 33 mm, wt. 9.8g.

Paspaley Diamond Bow Brooch/Clasp Swap with Platinum, 3.00 Carats

Paspaley, platinum and diamond Brooch/Clasp Swap, the openwork bow motif of finely pierced fluttering ribbon, pave-set throughout with brilliant-cut diamonds together weighing approximately 3.00 carats, with a brooch pin and a clasp swap fitting, signed…

19th Century Sterling Silver Kangaroo Landscape Diamond Shaped Brooch

An antique sterling silver diamond shaped brooch with kangaroo decoration in landscape, 19th century, 5 cm wide

Platinum and Diamond Bow Brooch with 4.20 Carats

Platinum and diamond bow brooch, set throughout with old European-cut diamonds, estimated diamond weight 4.20 carats, weight 9.6gm, length 5 cm.

Diamond and Platinum Openwork Brooch with Old-Cut Diamonds

Platinum and diamond brooch. Designed as an openwork plaque, centring three collet-set old-cut diamonds with in a pierced surround decorated with single-cut diamonds, the diamonds together weighing approximately 1.93 carats, length 65 mm, width 40 mm,…

Platinum Bow Brooch with 2.35ct Diamond Accents

Platinum and diamond brooch. The openwork bow motif of finely pierced ribbon with millegrain accents, collet-set with three brilliant-cut diamonds together weighing approximately 2.35 carats, width approximately 59 mm.

Georgian Silver Multi Gem Giardinetti Brooch with Diamonds and Rubies

Georgian silver multi gem Giardinetti brooch, (Giardinetti Italian for little garden) set with diamonds, rubies, citrines and emeralds all in silver 8 cm length, Giardinetti pieces were first made in Italy in the late 17th century, designed as bouquets of…

French Silver and Diamond Paste Floral Brooch with Pear Pendants

Late 18th century French pattern silver and diamond paste brooch, floral design with three pear shape pendants with later brooch pin 6 cm length

Edwardian Platinum Diamond Brooch with 1.90ct Total Weight

An ornate, Edwardian, rectangular openwork 1.90ct diamond brooch in platinum. Brooch is comprised of a central bezel set floral cluster, surrounded with symmetrical bead set leaves and round bezel settings, with a total of sixteen old European cut…

Platinum Bow Brooch with 3.00ct Diamonds, 11.2gm

Platinum and diamond brooch, openwork bow plaque with alternating millegrain and European-cut diamonds, mounted in platinum, total estimated diamond weight 3.00ct, weight 11.2gm, measuring 5.5 cm x 1.5 cm.

Antique Diamond Brooch with Old Mine-Cut Diamonds on Hardstone

19th century diamond brooch, centered by an old mine-cut diamond measuring approximately 6.84 x 6.80 mm, within a border of old mine-cut diamonds, on a hardstone plaque, silver gilt, weight 10.5gm, measuring 2.3 x 2 cm.

Dazzling Diamond Spray Brooch with 7.50 Carats

Diamond spray brooch, set throughout with round brilliant, single and baguette-cut diamonds, estimated total diamond weight 7.50 carats, weight 19.9gm, measuring 7.3 x 3.7 cm.

Sapphire and Diamond Flower Brooch

Sapphire and diamond flower brooch, the textured petals centred by a cluster of circular-cut sapphires and a brilliant-cut diamond, weight 16.7gm, length 4 cm.

Textured Ruby and Diamond Flower Brooch, 18K, 24.3gm, 6cm

Ruby and diamond flower brooch, with textured petals and centred with a cluster of circular-cut rubies and round brilliant-cut diamonds, stamped 750 18K, weight 24.3gm, length 6 cm.

1930s Platinum Diamond Onyx Brooch with French Assay Marks

Platinum, diamond and onyx brooch, circa 1930, designed as a bar set to the centre with an old-cut diamond of approximately 1.10 carat, flanked on each side by onyx plaques and seven more old-cut diamonds, the diamonds weighing approximately 3.80 carats,…

Late Victorian Diamond Set Silver Gilt Brooch with Rose Cut Diamond

Late Victorian diamond set brooch, being of hollow construction in silver gilt and set with 1= approximate 0.10ct rose cut diamond. Weight: 8.4 grams.

Platinum Diamond Brooch with 6.85ct Art Deco Design

Art Deco platinum and diamond brooch, platinum, rectangular plaque design, claw set with three main old European cut diamonds approx. 3cts in total, surrounded by a fine saw pierced setting with old mine and single cut diamonds, total estimated diamond…

Opal and Diamond Geometric Brooch with Platinum Setting

Platinum, opal and diamond brooch. Centring a claw-set oval opal cut en cabochon weighing approximately 14.00 carats, within a geometric surround detailed with single, rose and old European-cut diamonds together weighing approximately 0.70 carats, length…

Arrow-shaped brooch with diamonds, sapphires, and cultured pearl

Platinum, diamond and gem-set brooch. Modelled as an arrow, set throughout with old European and single-cut diamonds, carre-cut synthetic sapphires and a cultured pearl, length 78 mm, gross weight 7.1 grams

Platinum Brooch with Zircon, Diamond, and Geometric Design

Platinum, zircon and diamond brooch,. The rectangular plaque, centring two collet-set circular-cut zircons together weighing approximately 4.00 carats, within an openwork geometric surround set throughout with single-cut diamonds, length 14 mm, width 45 mm

Silver and Diamond Openwork Brooch with 2.00 Carats

Silver and diamond brooch. The plaque of openwork design, set throughout with old European and rose-cut diamonds together weighing approximately 2.00 carats,. Length 25 mm, width 46 mm, gross weight 8.4 grams

Vintage Art Deco Emerald and Diamond Brooch, Platinum c.1920

Rare Art Deco brooch, vintage emerald and diamond brooch set with four emeralds and 50 diamonds, hand made in platinum c.1920

1910 Platinum Brooch with Turquoise and Diamonds, 6.5g

An antique platinum brooch, set with a cabochon turquoise surrounded with twelve impressive white diamonds, circa 1910, 7.5 cm wide, 6.5 grams

Vintage Art Deco Emerald and Diamond Platinum Brooch, c.1920

Rare Art Deco brooch, vintage emerald and diamond brooch set with four emeralds and 50 diamonds, hand made in platinum c.1920

Platinum Diamond Crown Brooch with 1 Carat Old Mine-Cut Diamonds

Platinum and diamond brooch, modelled as a crown, set with old mine-cut diamonds, estimated total diamond weight 1 carats, stamped Pt with safety chain, weight 6.7 grams, measuring 2 x 3 cm

Austrian Blue Quartz and Diamond Flower Brooch with Enamel

Heldwein, quartz, diamond and enamel brooch, Austria, designed as a graduated row of blue quartz flowers each accented with a single-cut diamond, set on a black enamel bar, Austrian hallmarks accompanied by retailer's fitted box, 5.6gm, length 7 cm.

Raymond Yard Diamond 'Wattle' Brooch with 2.82 Carats Diamonds

Raymond Yard diamond 'Wattle' brooch, designed as a wattle spray embellished at intervals with claw-set brilliant-cut diamonds, the diamonds together weighing approximately 2.82 carats, length 55 mm, trombone clip fitting, signed Yard for Raymond Yard.

1940s Celestial Diamond Brooch: 9.26 carats, Platinum Mounting

Diamond brooch, circa 1940, property of a private Sydney Collector, of celestial design, decorated with marquise, baguette and circular-cut diamonds, the diamonds together weighing approximately 9.26 carats, mounted in platinum, length 61 mm, width 24 mm.

Antique Rose Cut Diamond Silver Brooch, 1.75ct, 870 Silver

Large antique rose cut diamond & silver brooch, unmarked. Approx brooch width 22 mm x1 6 mm (0.75ct), x7 3.4 x 4 mm (=1.00ct) total 1.75ct estimated, tests as 870 silver, brooch, unmarked. Approx brooch width 22 mm x1 6 mm (0.75ct), x7 3.4 x 4 mm (=1…

Antique diamond and pearl arrow brooch, silver gilt, missing diamond

Large antique diamond set rose gilt arrow brooch, unmarked. Approx pearl 3.7 mm, set with rose cuts. weight 6.79 grams, missing a rose cut diamond, tests as silver gilt, brooch, unmarked. Approx pearl 3.7 mm, set with rose cuts. weight 6.79 grams, missing…

Victorian 15ct Diamond Target Brooch with Photo Locket

Victorian 15ct target brooch, central single old mine cut diamond on oval plain platform framed with decorative bright cut wire and bead work with reverse photo locket 35 mm length

Victorian Pearl and Diamond Double Scroll Bar Brooch

Late Victorian 15ct pearl and diamond double scroll bar brooch, two round old mine cut diamonds with single natural pearl

Silver Moonstone and Diamond Art Deco Bar Brooch, 49mm Length

Art Deco silver moonstone and diamond bar brooch, rectangular panel set with eight cabochon moonstones interspaces with three bands of rose cut diamonds, 49 mm length

Antique Amethyst, Diamond, and Pearl Brooch by Mortons

Early 20th century 18/15ct amethyst diamond and pearl brooch, central oval mixed cut amethyst approx 27cts with early round brilliant cut diamonds pave set surround and shoulder bar, six half pearls 80 mm length, fitted in John Morton box., Mortons being…

18ct Emerald and Diamond Cluster Brooch/Pendant, 19th Century

A 19th century 18ct emerald and diamond cluster brooch/pendant, central octagonal step cut vivid green emerald 8.5 x 7.6 mm 16 stone diamond surround cluster with domed double framed design of fleur des lys, 56 all individually set early round brilliant…

Edwardian 15ct Silver Diamond Pearl Circle Brooch with Cross Rails

Edwardian 15ct and silver diamond and pearl circle brooch, open circle with cross rails supporting nine 6.50 mm button pearls and 23 old European cut diamonds, 55 mm dia

Art Deco Sapphire and Diamond Lozenge Brooch, Millegrain Setting

18ct Art Deco style 91 stone sapphire and diamond lozenge brooch, all millegrain set, 38 mm length

18ct Diamond Circlet Brooch with 35 Brilliant Cut Stones

18ct 35 stone diamond circlet brooch, design of five loops each set with panel of pave set round brilliant cut diamonds 35 mm diameter

Edwardian Diamond and Pearl Shield Brooch with Ribbon Design

Edwardian 18ct diamond and pearl shield brooch, design of three pearl and diamond floret clusters supporting ribbon folds and central pendant the all set with old mine cut diamonds and rose cut chips, three natural half pearls with three pear shape drops

Platinum, Diamond, and Emerald Openwork Brooch with 1.40 Carats

Platinum, diamond and emerald brooch, the openwork brooch set throughout with single and old European-cut diamonds and accented with calibre-cut emeralds, estimated total diamond weight 1.40 carats, weight 7.2gm, measuring 2.2 x 3.4 cm.

Platinum and Gem Set Brooch with 20ct Diamonds

Platinum, diamond and gem set brooch, channel set with rectangular step-cut emeralds and sapphires within a single-cut diamond frame, estimated total diamond weight 20 carats, weight 9.4gm, measuring 6.4 x 1 cm. Provenance: The Caroline Laws collection

1930 Black Onyx and Diamond Brooch with Platinum Ribbon Bow

Black, star & Frost onyx and diamond brooch, circa 1930, designed as a 7 mm black onyx spherical annular plaque surmounted with a platinum ribbon-bow millegrain-set with old-cut diamonds, the diamonds together weighing approximately 0.65 carats, diameter…

Diamond and Pink Sapphire Dragonfly Clip Brooch by Van Cleef

Van Cleef & Arpels a diamond and pink sapphire dragonfly clip brooch, comprising a brooch, modelled as a naturalistic dragonfly pave-set with brilliant-cut diamonds, another pave-set with circular-cut pink sapphires and diamonds en suite, length 63 mm,…

1950s Floral Diamond Pendant/Brooch with 3.60 Carats in Platinum

Diamond pendant/brooch, circa 1950, of floral and foliate design embellished with brilliant-cut diamonds, the diamonds together weighing approximately 3.60 carats, mounted in platinum, width 37 mm, length 58 mm .

Floral Diamond and Pearl Brooch, Pt Stamped, 14.5g

Pearl and diamond brooch, designed as an open flower with five petals of channel-set tapered baguette diamonds and five petals of finely pave-set round brilliant-cut diamonds, claw-set with a fine mabe pearl and has two curved stems pave-set with fine…

Art Deco Diamond Bar Brooch with Old Mine-Cut Diamonds

Art Deco diamond brooch, rectangular bar-style brooch millgrain-set with single cut diamonds and seven larger old mine-cut diamonds, mounted in platinum, unsigned, length 6 cm, total weight 7.7grams. Black box

Hardy Bros Emerald and Diamond Bow Brooch in Retailer Box

Emerald and diamond brooch, retailed by Hardy Bros, designed as a bow, the openwork brooch with floral details, accented with carre-cut emeralds and centred by an old European-cut diamond, accompanied by fitted retailer's box, weight 4.7gm, length 5.8 cm.

Platinum and diamond Belle Epoque brooch, circa 1910

Belle Epoque platinum and diamond brooch, circa 1910, the circular openwork plaque with knifewire and foliate detail, millegrain-set with single and old European-cut diamonds, central diamond estimated weight 0.75 carats, weight 13.4gm, length 4.4 cm.

Platinum and Diamond Double Clip Brooch with 30.55 Carats

Platinum and diamond double clip brooch set throughout with round brilliant and baguette-cut diamonds, estimated total diamond weight 30.55carats, accompanied by fitted box, weight 41.3gm, measuring 8.5 x 5 cm. The double clip brooch came into fashion in…

Jade and Diamond Bird Brooch

Jade and diamond brooch, the rectangular jade plaque carved with bird, fruit and leaf within an openwork frame of rose and brilliant-cut diamonds, weight 18.6gm, measuring 5.5 x 2.5 cm.

Jade and Diamond Brooch with Carved Plaques and Diamonds

Jade and diamond brooch, the terminals set with oval carved plaques, rose and single-cut diamonds, weight 13.3gm, length 9.4 cm.

18K Sapphire and Diamond Flower Brooch, 0.50ct Diamond

Sapphire and diamond flower brooch, the petals set with calibre-cut sapphires and centred by a round brilliant-cut diamond with estimated weight 0.50 carats, estimated remaining diamond weight 0.30carats, stamped 18K, weight 17.3gm, length 4.3 cm.

Emerald and Diamond Pendant/Brooch with 130 Carat Cabochon

Emerald and diamond pendant/brooch, the pear shaped cabochon emerald with estimated weight 130 carats within a double border of round brilliant-cut diamonds, estimated total diamond weight 50 carats, weight 15.5gm, length 4 cm. Provenance: Property of a…

Shield-shaped Diamond and Gem Pendant/Brooch with Rubellite Tourmaline

Diamond and gem-set pendant/brooch, of shield shape set with pear, oval and triangular shaped rubellite tourmaline and centred by a circular-cut amethyst, set throughout with round brilliant, baguette and tapered baguette-cut diamonds, estimated total…

Swordfish Ruby and Diamond Brooch in 18K Gold, 7.3gm

Novelty ruby and diamond brooch modelled as a sword fish, set with calibre-cut rubies and round brilliant-cut diamonds, stamped 18K, weight 7.3gm, length 5.8 cm.

Art Deco Diamond Brooch with 1.80ct Total Weight Diamonds

Art Deco diamond brooch1.80ct total weight Old European& rose cut diamonds 16 mm x 50 mm, weight 8.38 grams, tests as silver

Platinum & Diamond Bow Brooch: 1.30 Carats, 65mm Length

Platinum and diamond brooch; modelled as a bow, set throughout with old European-cut diamonds together weighing approximately 1.30 carats, length approximately 65 mm.

Geometric Diamond Brooch: Brilliant and Single-Cut, 1.89 Carats

Platinum and diamond brooch; of geometric design, set throughout with brilliant and single-cut diamonds together weighing approximately 1.89 carats, length approximately 47 mm.;

Art Deco Sapphire and Diamond Bow Brooch

Art Deco sapphire and diamond brooch; modelled as a stylised bow, centring a rectangular-shaped sapphire flanked by a row of channel-set variously-cut sapphires within a border accented with old round-cut diamonds, the sapphires and diamonds together…

Ruby and Diamond Floral Spray Brooch

A ruby and diamond spray brooch, stylised floral spray set with twelve round rubies amongst diamond set leaves, crafted in platinum, total weight 7.9gms.

9ct Sapphire & Diamond Paste Bar Brooch with Box

Vintage boxed 9ct sapphire and diamond paste bar brooch, central marquise gem panel with fine shield scroll shoulders, markers mark a J S (unknown) 45 mm length

1890 Vintage Ruby and Diamond Bar Brooch

Vintage boxed 15ct fancy bar brooch dated 1890, central star burst of ruby and rose cut diamonds, markers mark beaver probable Alexander beaver 40 mm length

Diamond Art Deco Double Clip Brooch

Art Deco diamond double clip brooch, circa 1925, property from the estate of a private collector, designed as a stylised ribbon bow, the openwork plaque is embellished with baguette and circular-cut diamonds, the diamonds together weighing approximately 4…

10ct Diamond Feather Brooch with Baguette Accents

Diamond feather brooch, the articulated feather of openwork design accented throughout with brilliant and baguette-cut diamonds, the top set with a pear shaped diamond estimated weight 10 carat and terminating with a trilliant-cut diamond estimated weight…

Antique Platinum Brooch Pair with Diamonds and Onyx

Platinum antique brooch pair, featuring 2 x early round brilliant cut diamonds of estimated weight .06 carats, accented by 24 x small faceted onyx (one missing) in an ornate design. Finished weight 2.67 grams. Overall size 25 mm.

Kookaburra Brooch with Ruby and Diamonds

Platinum, ruby and diamond brooch, modelled as a kookaburra, the eye set with a circular-cut ruby and the body detailed with single-cut diamonds, measuring approximately 25 x 15 mm.

Victorian Sapphire & Diamond Brooch

Victorian sapphire and diamond brooch, classical Victorian brooch with central sapphire flanked by mine cut diamonds

Diamond and Coral Brooch with Onyx Panels

Platinum, coral, onyx and diamond brooch. Centring a claw-set oval cabochon coral weighing approximately 6.00 carats. Flanked by oval cabochon onyx and diamond panels, within an open border set throughout with rose-cut diamonds, measuring approximately 37…