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An early 20th century sapphire and diamond brooch, circa 1910 Millegrain-set with a central round-cut diamond in a border of calibré-cut sapphir...

A mid 19th century diamond brooch, circa 1850 Of scrolling Catherine wheel design, set throughout with graduated old round-cut diamonds, rose-cu...

EDWARDIAN RUBY AND DIAMOND BROOCH, High carat gold. Vibrant rubies. Bright and lively diamonds. W. 2.3 cm. 2.3 grams.

A 19th century diamond brooch, circa 1880s Set throughout with old cushion-cut diamonds, unmarked Width: 2.4cm

A Victorian turquoise and diamond brooch/pendant, a central turquoise cabochon and old cut diamond cluster, to openwork circular pendant with turq...

A tourmaline and diamond brooch Of stylised design, claw-set with a round-cut blueish-green tourmaline and nine small round brilliant-cut diamon...

Two opal and diamond brooches, the first a Victorian openwork old brilliant cut diamond floral cluster design brooch with central cabochon opal an...

A gemstone and diamond brooch/pendant, a central cushion cut orange/brown zircon to border of brilliant cut and rose cut diamonds, outer row of as...

A 20th century coral and diamond brooch, of stylised abstract wirework design, set with marquise shaped coral (corallium rubrum) cabochons and bri...

A ruby, sapphire and diamond brooch, designed as a buff top ruby cluster flowerhead with buff top sapphire stem detail mounted within a pavé diamo...

VICTORIAN DIAMOND BROOCH, Gold backed. Diamonds bright and lively. W. 4.8 cm. 7.6 grams.

VICTORIAN CARVED GARNET AND DIAMOND BROOCH. Testing gold. Set with vibrant carved garnet. Bright and lively diamonds. Width: 3.5 cm. 20.5 gram.

A mabé pearl and diamond brooch Modelled as a seated panther with satin finish, the collar and eye set with small round brilliant-cut diamonds, ...

An early 20th century black opal and diamond brooch Millegrain-set with an oval cabochon black opal, flanked to either side by a cluster of thre...

An Art Deco diamond brooch, circa 1940s Of angular hexagonal detail, set throughout with round-cut diamonds, unmarked Width: 3.0cm

Hamilton & Inches: An 18ct gold diamond brooch/pendant Of stylised fleur-de-lis design, collet-set with five round brilliant-cut diamonds, UK ha...

EDWARDIAN DIAMOND BROOCH Platinum. Diamonds totalling approx. 3.20 ct. In our opinion, the diamonds are H-I colour, Mainly VS/SI clarity. W. 5.5 c...

DIAMOND BROOCH, High carat gold. Diamonds bright and lively, totalling approx. 1.30 ct. W. 3.6 cm. 5.6 grams.

Antique Diamond 3 Stone Yellow Gold Brooch wonderful chunky 3stone diamond brooch Length 62mm width 6mm weight 4.67g materials: yellow gold and...

VICTORIAN RUBY AND DIAMOND BROOCH, 15 ct. gold. Vibrant rubies. Bright and lively diamonds. W. 4.7 cm. 4.8 grams.

Two diamond brooches, one an Art Deco old brilliant cut diamond bar with quatrefoil terminals, circa 1930, length 4cm; the other a Belle Époque di...

Tiffany & Co.18ct gold and diamond brooch, with 17 brilliant cut diamonds, approximately 0.5ct total, double pin to reverse marked 18ct Tiffany & ...

18ct gold and diamond brooch set with a centre pearl, diameter 4cm, 18.8g, marked 18ct to reverse. Estimate: £700-800

An 18ct gold diamond brooch Of pierced wreath design, set throughout with graduated round brilliant-cut diamonds, UK hallmarks Diameter: 4.3cm

18K WHITE GOLD - LARGE DIAMOND BROOCH (23.6g)

Turquoise and diamond brooch/pendant on yellow metal mount, approximately 5cm. Estimate: £300-400

18K YELLOW GOLD & DIAMOND BROOCH

Antique 15ct Gold Turquoise and Diamond Brooch    truly wonderful!    measurements: length 47mm width 35mm weight 14.76g   materials: 15ct gold, t...

An Edwardian gold and pearl bangle and a sapphire and diamond brooch, the bangle with central half pearl set horseshoe engraved to the underside 3...

A Belle Époque pearl and diamond brooch, the rose cut diamond key pattern bar with pearl three stone terminals suspending a fringe of ten vari-ton...

Antique Rose Cut Diamond Turquoise Hearts and Flower Brooch   the most beautiful diamond brooch with hanging heart!   measurements size 47 mm x 31...

Large Antique Rose Cut Diamond Bar Brooch Pin in Gold    Wonderful Long Diamond Brooch, Truly Lovely!    measurements: length 61mm  width 2mm  wei...

A silver gilt ruby and diamond brooch/pendant, in the form of a bird, with ruby set eye, pavé rose cut and single cut diamond body, and with ename...

An early 20th century gold, amethyst, emerald and diamond brooch, modelled as a  bunch of grapes, the amethyst bead grapes suspended from a pavé v...

A Victorian diamond brooch, centre stone deficient, the oval brooch set with old mine cut diamonds with diamond cardinal points, mounted in silver...

A jadeite jade and diamond brooch, the oval cabochon jade in four claw mount to diamond openwork palmette shoulders, length 3.8cmPlease note that ...

An Art Deco jadeite and diamond brooch, the millegrain set rectangular domed jadeite jade panel with old brilliant cut diamond seven stone line bo...

An early 20th century diamond brooch/pendant, the openwork scrolling frame grain and claw set throughout with old European cut and single cut diam...

Tiffany & Co. A platinum diamond brooch, of hoop form, grain set with graduated brilliant cut diamonds, with brilliant cut diamond chevron surmoun...

Wonderful Antique Boxed Diamond Bar Brooch Approx 85pts    truly excellent diamond brooch, simple yet beautiful    measurements size 41mm x 4mm we...

A Magical 18K Yellow Gold and Diamond Brooch. 1.5ctw of brilliant round cut diamonds amongst leaves of gold. 4cm x 4.5cm. 11.75g total weight.