A diamond and gem-set brooch. Of triangular outline,

A diamond and gem-set pendant. Of geometric outline, the oval-shape pink tourmaline and rose-cut diamond cluster, with similarly-set diamond and gem-set cluster surround. May be worn as a brooch. Leng

A late 19th century 18ct gold enamel and gem-set butterfly brooch. The rose-cut diamond, ruby cabochon and split pearl butterfly, with black enamel limbs and outline, inset to the plain disc with step

A Russian gold, diamond, and gem-set brooch, Feodor Lorie, Moscow, circa 1899-1908. Formed as a three-leaf clover with finely-engraved gold leaves encircled by its own stem, set entirely with rose-cut

DIAMOND AND GEM-SET BROOCH, LEGNAZZI in two tone gold depicting a duck with various coloured gems, black enamel and brilliant-cut diamonds weighing approx. 0.40 ct. Maker's mark for Legnazzi.

A diamond and gem-set brooch silver metal, closed back setting, gem and diamond set. Centered by a oval garnet cabochon measuring 12.8x9.7mm surrounded by antique cut diamonds, rubies, and emerald acc

A diamond and gem-set brooch. Designed as a series of brilliant-cut diamond accent carved rock crystal flowers, atop a carved nephrite jade leaf. Estimated total diamond weight 0.10ct. Length 7.3cms.

Diamond and gem-set brooches A diamond, ruby, and 18k yellow gold bow brooch; and a diamond, ruby, emerald, sapphire, and 14k white gold bar brooch Gross weight 12.2 dwts

A diamond and gem-set brooch. Designed as a woven basket, with circular-shape ruby accents and single-cut diamond collet rim, displaying a spray of diamond, emerald and ruby floral clusters. Estimated

Vintage White Gold, Diamond, and Gem-Set Brooch designed in a shaped lozenge form with allover filigree decoration, set with old European and old single cut diamonds weighing approximately .26 total c

A diamond and gem-set brooch. Designed as a carved mother-of pearl and amethyst floral spray, with onyx and brilliant-cut diamond basket. Total diamond weight 0.40ct, stamped to mount. Length 4cms. We

An 18ct gold diamond and gem-set brooch. Designed as a giardinetti, with brilliant-cut diamond openwork basket and marquise-shape ruby, sapphire and emerald flowers. Estimated total diamond weight 0.2

A diamond and gem-set brooch. Of openwork design, the foil-back emerald and green paste quatrefoil, within a diamond and paste replacement scrolling surround. Estimated total diamond weight 1ct. Lengt

Two early 20th century diamond and gem-set brooches. To include an alternating square-shape emerald and old-cut diamond line brooch, together with a Martin Mayer green paste circle brooch. One with ma

A diamond and gem-set brooch. The cultured pearl and old-cut diamond, suspended from a rose and old-cut diamond scrolling surround, with circular-shape synthetic ruby and cultured pearl highlight. Est

A diamond and gem-set brooch. Designed as a pheasant, the pave-set seed pearl and turquoise body, with circular-shape diamond tail. Length 4.7cms.

A mid 20th century 9ct gold diamond and gem-set brooch. Estimated total diamond weight 0.20ct. Hallmarks for London, 1963. Length 4.2cms. 7.6gms.

Two diamond and gem-set brooches. To include an early 20th century cultured pearl and diamond bar brooch and a composite split-pearl and blue paste brooch. Estimated total diamond weight 0.10ct. Lengt

Two diamond and gem-set brooches. Each designed as two carved amethyst and vari-cut diamond flowers, to the carved nephrite jade leaves and gathered stems. Estimated total diamond weight 0.15ct. Lengt

A late 19th century silver and gold diamond and gem-set brooch. The rose-cut diamond dove with ruby eye, holding a pearl and old-cut diamond garland, to the similarly-cut diamond arrow head and fletch

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

VAN CLEEF & ARPELS: DIAMOND AND GEM-SET FLOWERSPRAY BROOCH, 1930S The engraved and highly textured floral and foliate spray tied with a fluttering ribbon, decorated throughout with brilliant, old bril

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

Diamond and gem-set bird brooch Circular-cut emeralds, invisibly-set sapphires and rubies, round brilliant-cut diamonds 18k yellow gold 2 ins; Gross weight 8.9 dwts

AN 18K GOLD, PLATINUM, DIAMOND AND GEM-SET CLIP BROOCH Elevating figural coral and turquoise carvings upon fluted pedestals accented by round, old mine-cut, old European-cut and single-cut diamonds an