A pair of early 20th century 18ct gold gem-set

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

Four early 20th century gold gem-set dress rings. To include two 18ct gold ruby and diamond three-stone rings, together with two further ruby and gem-set dress rings. Two with hallmarks for 18ct gold,

A PAIR OF ANTIQUE DIAMOND DROP EARRINGS, EARLY 20TH CENTURY in yellow gold and platinum, each set with a row of three old cut diamonds suspending a cluster of old cut diamonds, stamped 18ct, 2.6cm, 4.

PIAGET - a lady's mid 20th century 18ct gold gem-set cocktail watch. The textured dome with star-set circular-shape ruby and emerald accents inset, hinged to reveal the dial, to the integral tapered m

A pair of early 20th century 18ct gold and platinum lapis lazuli and diamond cufflinks. Each designed as two octagonal-shape lapis lazuli and rose-cut diamond cluster panels, to the connecting link. L

A pair of early 20th century 18ct gold cufflinks. Each designed as two oval panels, with foliate engraved motif, connected by an oval link. Length of cufflink face 1.7cms. Weight 13.1gms.

AN ANTIQUE DIAMOND TOI ET MOI RING, EARLY 20TH CENTURY in 18ct yellow gold, set with two old cut diamonds of approximately 0.55 and 0.52 carats, in a frame of further old cut diamonds, stamped 18CT, s

An early 20th century gold, diamond and gem-set snake pendant. The engraved head with sugarloaf emerald cabochon crest and ruby eyes, tapered to the cushion-shape ruby and vari-cut diamond coiled body

AN ANTIQUE SOLITAIRE DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold, set with an old cut diamond of 0.32 carats, stamped 18c, size N / 6.75, 2.0g.

An early 20th century 15ct gold enamel and gem-set snake brooch. Designed as a graduated green guilloche enamel snake, with ruby cabochon eyes, wrapped around a split pearl bar. Length 4.6cms. Weight

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.

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

An early 20th century Egyptian Revival gold, diamond and gem-set brooch. The carved moonstone scarab with ruby and rose-cut diamond surround, to the rose-cut diamond accent openwork wing sides. Austri

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

A SOLITAIRE DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond of 0.51 carats within a tapering band, stamped 18ct Plat, size K / 5.25, 2.4g.

A set of early 20th century 18ct gold and platinum mother-of-pearl and diamond dress studs. Each designed as an old-cut diamond collet, within a mother-of-pearl surround with engraved border. Estimate

A late 19th / early 20th century 18ct yellow gold and turquoise ring the mount set with three domed turquoise, engraved to interior of shank with initials 'AME EMG' and '1893-1906', size P, 6.8 grams.

An early 20th century 18ct gold French cameo brooch bearing eagle mark and partially legible sponsors mark. Together with a matching cameo  earring set being stamped 14k to verso. Each with screw pos

Four gem-set rings. To include an early 20th century 9ct gold sapphire and diamond ring, a 9ct gold pink sapphire and diamond crossover ring, together with two further rings. Estimated total diamond w

A PAIR OF PEARL AND DIAMOND EARRINGS, EARLY 20TH CENTURY in white gold, each set with a pearl of 11.4mm, below drops set with old and single and rose cut diamonds, unmarked, 4.5cm, 8.5g.

A pair of early 20th-century gold cufflinks. Hexagonal cufflinks, each decorated with an engraved image of a bird, set with diamonds. Hallmarked on the clasp: the initials V.L. (Cyrillic) and 56 gold

An early 20th century platinum and 18ct gold coral and diamond dress ring. The replacement oval-shape coral cabochon, within a rose-cut diamond openwork panel surround, to the similarly-set diamond sh

Set with rubies, emeralds, opals, jade, seed pearls, or red and green "gems". 9k-18k. Early-late 20th c. Sizes 6 - 7 1/2. 15.8 dwt.

A PAIR OF ANTIQUE ONYX AND DIAMOND DROP EARRINGS, EARLY 20TH CENTURY in yellow gold, of circular design, set with polished black onyx cabochons overlaid with floral motifs, set with rose cut diamonds,