Opal and Gem Set Asian Musician Novelty Brooch, large cabochon opals, set with Rubies, Sapphires and

A late Victorian diamond and gem-set butterfly brooch. With circular-shape sapphire body and ruby eyes, the rose-cut diamond wings with oval opal cabochon and ruby accents. Length 2.6cms. Total weight

A 9ct gold gem-set brooch. Of openwork design, the oval opal cabochon, with a split pearl scrolling surround, to the circular-shape sapphire chevron sides. Hallmarks for London, 1988. Length 3.7cms. W

An 18ct gold opal and diamond novelty brooch, and an 18ct gold gem-set cluster ring. The brooch designed as a pair of sunglasses with oval opal cabochon lenses and brilliant-cut diamond bridge, the ri

Two gem-set bee brooches. Each designed as a graduated opal cabochon and circular-cut diamond double cluster body, with circular-shape ruby eyes and diamond wings. Estimated total diamond weight 0.70c

Designed as an open-winged butterfly with round-faceted or cabochon opals, rubies, sapphires, emeralds and RBC diamonds, .60 ct. TW. Mid 20th c. Stamped 14k. 1 1/4" x 2". 10.7 dwt. Provenance: From th

A gem-set and plique-a-jour enamel novelty pendant. Designed as a fly, with circular-shape ruby eyes, oval synthetic opal cabochon and cultured pearl body, marcasite legs and polychrome plique-a-jour

Containing twenty three mostly yellow gold stick pins, including Art Nouveau flower, horse shoe, bee, mermaid, flower, and swirl designs, set with seed pearls, carnelian, diamond, sapphire ruby, opal

Gold, Shell, and Gem-Set Suite, MAZto include turbo shell brooch accented with bezel set round cabochon rubies, emeralds, and sapphires and with gold wire twist and rosette accents and gold bead end c

American Arts and Crafts opal, demantoid garnet, and sapphire brooch Set with an oval cabochon opal, in a foliate frame of circular-cut sapphires and demantoid garnets, c. 1900 Yellow gold 7/8 x 1 3/4

PLATINUM & 18K GOLD CEYLON STAR SAPPHIRE DIAMOND & RUBY BROOCH: An important 18K yellow gold Russian brooch set with a large star sapphire cabochon surrounded by diamonds and knife-set rubies in an en

Two early 20th century gold gem-set brooches. To include a circular opal cabochon and split pearl floral brooch, together with an oval opal cabochon bar brooch. Lengths 4.8 and 6.1cms. Weight 6.6gms.

A 9ct gold gem-set brooch and two opal stickpins. To include a vari-shape opal cabochon openwork brooch, with single-cut diamond highlights, together with two vari-shape opal stickpins. One with hallm

VAN CLEEF & ARPELS: DIAMOND AND GEM-SET 'SCARECROW' BROOCH, CIRCA 1965 The textured clothing set with brilliant cut diamonds, accented by ruby and sapphire cabochons, with spherical chalcedony head, s

Opal and Gem-Set "Beetle" Ring 14k rose gold, the body of the ring mounted with an oval cabochon-cut opal weighing approximately 1.50 carats, accented on the head with a pear-shaped treated ruby weigh

A GEM-SET AND DIAMOND DRAGONFLY BROOCH, the thorax set with a faceted pear-shaped ruby, segmented abdomen with baton shaped emerald, ruby and onyx, its wings set with opal, pierced to reverse, to circ

Two 18ct gold diamond and gem-set rings. To include an oval opal cabochon single-stone ring with brilliant-cut diamond stepped sides, together with a ruby and diamond cluster ring. Estimated total dia

Group of cultured pearl, enamel, and gem-set jewelry Comprising a gold and cultured pearl starburst pendant brooch; a gold bombe ring of cloisonne enamel; and a gold, oval cabochon opal, and tsavorite

An early 19th century gold enamel and gem-set brooch. Of openwork design, the later added cushion-shape lapis lazuli panel and floral surround, to the enamel flower, ruby and opal scrolling foliate bo

JOHN DONALD: GEM-SET NECKLACE, 1991 Each baton link set to the front and reverse with various circular-cut gemstones, including sapphires, rubies, citrine, aquamarine and opals, maker's mark JAD, part

A GROUP OF 10K GOLD AND GEM-SET RINGS • 10k yellow gold • 1 moonstone bead, 8 marquise and 4 round garnets, 1 oval synthetic ruby, 1 oval amethyst, 1 round opal cabochon • Sizes 5, 5

Three 9ct gold gem-set dress rings. To include a vari-colour sapphire cluster ring, an opal cabochon cluster ring, together with a vari-colour gem-set ring. Hallmarks for 9ct gold. Weight 13gms.

A selection of four 9ct gold gem-set dress rings. To include an amethyst single-stone ring with colourless gem asymmetric shoulders, an oval opal cabochon and sapphire cluster ring, together with two

A selection of four 9ct gold gem-set dress rings. To include a circular opal cabochon and sapphire cluster ring, a multi gem and diamond dress ring, together with two further rings. Three with hallmar

Two gem-set rings. To include a mid Victorian memorial ring, designed as a cushion-shape ruby and circular opal cabochon cluster with circular-shape green-gem sides and engraved textured shoulders, to