AN ANTIQUE OPAL, DIAMOND AND ENAMEL BROOCH in platinum and yellow gold, set with a rectangular

ANTIQUE OPAL, DIAMOND AND ENAMEL BROOCH, 19TH CENTURY in high carat yellow gold, in open heart design set with a moon cabochon opal, old and rose cut diamonds totalling approximately 10.00 carats and

Antique Victorian Opal, diamond, enamel, and gold brooch Set with cabochon opals and rose-cut diamonds, in a swirling surround of black enamel; 1880s Yellow gold 2.75 x 1.25 in; Gross weight 12.0 dwts

A FINE ANTIQUE AUSTRIAN ENAMEL, PEARL AND DIAMOND BROOCH in yellow gold, of rectangular design, set with two pearls and an applied foliate motif set with rose cut diamonds, accented by a border of whi

AN ANTIQUE DIAMOND HARE BROOCH in platinum and yellow gold, set with old mine cut and rose cut diamonds, accented by a cabochon ruby eye and engraved fur detailing, no assay marks, 3.8cm, 5.8g. Accomp

AN ANTIQUE DIAMOND HARE BROOCH in platinum and yellow gold, set with old mine cut and rose cut diamonds, accented by a cabochon ruby eye and engraved fur detailing, no assay marks, 3.8cm, 5.8g.

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, set with a central cabochon opal within a scrolling openwork mount set with old cut diamonds, the diamonds all totalling 5.3-5.5 carats, n

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, set with a trio of graduated oval cabochon opals, accented by rose cut diamonds, no assay marks, 3.5cm, 2.6g.

A FINE ANTIQUE DIAMOND AND ENAMEL BROOCH, 19TH CENTURY in yellow gold and silver, set to the centre with an old oval cut diamond of 2.14 carats within a scrolling border of black enamel, accented by a

AN ANTIQUE DIAMOND AND ENAMEL COCKEREL BROOCH in yellow gold and silver, designed as a cockerel, set with rose cut diamonds, red enamel to the comb, no assay marks, 2.9cm, 3.7g.

AN ANTIQUE OPAL AND DIAMOND BROOCH in yellow gold and silver, formed of a trio of flower motifs, each set at the centre with a round cabochon opal, accented in the petals by rose cut diamonds, unmarke

AN ANTIQUE GARNET, PEARL, DIAMOND AND ENAMEL DEVANT DE CORSAGE BROOCH / PENDANT in 18ct yellow gold, set with a central trefoil of rose cut diamonds within clusters of oval cut garnets and pearls, sur

10k white and yellow gold pin brooch, set with a central round shaped cabochon opal, approximate total weight of opal 1.57ct, flanked by four old European cut diamonds, approximate total weight of dia

BOUCHERON, AN EXCEPTIONAL ANTIQUE ART DECO DIAMOND AND ENAMEL BROOCH in platinum and 18ct white gold, the geometric body set with old cut diamonds within two octagonal borders of black enamel, the pri

AN ANTIQUE NEPHRITE, RUBY, DIAMOND AND ENAMEL EGYPTIAN REVIVAL BROOCH, CARL BACHER, CIRCA 1900 in yellow gold, set to the centre with a carved nephrite jade scarab beetle, accented by rose cut diamond

AN ANTIQUE DIAMOND, RUBY AND ENAMEL NOVELTY CHICK BROOCH in yellow gold and silver, comprising two bars set with a chick jewelled with round cut diamonds and a ruby, between white enamel pieces of she

AN ANTIQUE DIAMOND AND ENAMEL BROOCH / CHOKER JEWEL, FRENCH MID 19TH CENTURY in high carat yellow gold, the octagonal face set with an old cut diamond within an enamelled scene depicting cherubs, unma

NO RESERVE - AN ANTIQUE ART NOUVEAU DIAMOND AND OPAL BAR BROOCH in 15ct yellow gold, set with an old cut diamond and an opal cabochon within two scrolling bars, stamped 15, 4.0cm, 3.9g.

AN ANTIQUE DIAMOND AND ENAMEL BROOCH, 19TH CENTURY in yellow gold and silver, deigned as a ribbon decorated in blue enamel, accented by old cut diamond set flowers, the ribbon with enamelled lettering

A DIAMOND AND ENAMEL BROOCH, EARLY 20TH CENTURY in platinum and yellow gold, the oval body of openwork design, set with a central old cut diamond between panels of blue guilloche enamel, accented by f

Antique 18k Diamond set Enamel Portrait Brooch , Late 18th century, 18k yellow gold Enamel Portrait Brooch attributed Switzerland. Set with a rose-cut diamond. Tested 18k. WEIGHT: 8.0 grams [14193] (B

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.

AN ANTIQUE ENAMEL AND DIAMOND BROOCH in yellow gold and silver, the circular domed body set with blue guilloche enamel and an applied foliate motif set with rose cut diamonds, no assay marks, 2.1cm, 5

AN ANTIQUE OPAL AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a cabochon opal in a cluster of rose cut diamonds, stamped 18CT & PLATINUM, size M / 6.25, 2.7g. 

AN ANTIQUE NATURAL PEARL, ENAMEL AND DIAMOND BROOCH, 19TH CENTURY in yellow gold and silver, set with a central pearl within a border of ribbon designs of blue enamel, set with old cut diamonds, suspe