Unmarked gold Pointer dog brooch set with diamonds and cabochon opals, 4.5cm wide, 5.4g

AN OPAL AND DIAMOND BROOCH in yellow gold, set with a cabochon opal of approximately 13.61 carats, in a border of old cut diamonds totalling approximately 1.40 carats, unmarked, 2.5cm, 7.3g.

18K yellow gold and 14K white gold Art Nouveau style plique-à-jour dragonfly brooch set with a cabochon opal, two cabochon aquamarine eyes and round cut diamond accents. Apparently unmarked but tes

AN OPAL, AMETHYST AND DIAMOND SPIDER BROOCH in yellow gold and silver, the body set with a round cabochon opal and a round cut amethysts accented by rose cut diamonds in the legs, unmarked, 3.7cm, 8.9

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

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

ED WIENER 18K Gold Hand Wrought Diamond Brooch Pendant Pin. Large sculptural modernist brooch with 5 faceted prong set diamonds and large set opal center stone. Mid century hand crafted studio jewelry

AN OPAL AND DIAMOND PENDANT AND CHAIN, ASPREY & CO in 18ct white gold, set with an elongated oval cabochon opal of 4.85 carats, suspended below four graduated chevron motifs set with round cut diamond

Two-Color Gold, Diamond and Cabochon Gem-Set Flower Pendant-Brooch 18 kt. yellow and white gold, 5 round diamonds ap. 1.45 cts., 162 round diamonds ap. 5.00 cts., 2 oval cabochon sapphires, 2 oval cab

An elegant antique Imperial Russian 56 gold brooch modeled as a bug set with 26 round diamonds 58-1.03 carats, 4/4-5 clarity, 10 round diamonds 0.62 carats, 3/3 clarity, cabochon oval tourmaline 8.00,

ALDO CIPULLO: AN 18K GOLD, CORAL, AND DIAMOND 'LOVE' BROOCH Set with full-cut diamonds and a heart-shaped coral cabochon, weight 3.6 dwt, signed A. Cipullo, length 15/16 in. Footnotes: Please note t

A PAIR OF OPAL DOUBLET AND DIAMOND DROP EARRINGS in 18ct white gold, each set with a cabochon opal doublet within a border of round cut diamonds, accented by single cut diamonds in fleur de lis motifs

OPAL AND DIAMOND BROOCH, CIRCA 1890 The opal cabochon set within an open surround of old brilliant and single-cut diamonds, suspending an opal drop, diamonds approx. 070ct total, length 5.0cm

OPAL AND DIAMOND STARFISH BROOCH, 20TH CENTURY Pavé-set throughout with circular opal cabochons, with a central old brilliant-cut diamond star motif, each arm with a ridge of brilliant and old br

Crafted in platinum and 18K gold; set with a trapezoid cabochon-cut black opal, measuring approximately 12.40 x 9.30 x 4.65 mm; lozenge-shaped sapphire, weighing approximately 2.60 carats; accented by

and Diamond Brooch. Signed Bvlgari 18kt gold floral form brooch set with (9) round moonstone cabochons, (17) round faceted sapphires, and (38) diamonds of various sizes. Stamped, "Bvlgari" v

KUTCHINSKY: SQUIRREL BROOCH 1965 The 18 carat gold squirrel with brilliant-cut diamond set eyes and a cabochon ruby nose, signed Kutchinsky, maker's mark, London hallmark, length: 3.8cm For further i

Brooch. The absolute sweetest signed Cartier 18kt yellow gold bunny brooch displaying prong-set faceted blue gem eyes, a ruby cabochon nose, a turquoise beaded vest, applied gold bow tie, and a diamon

Ed Wiener (American, 1918-1991). Signed vintage designer gemstone brooch. A freeform Brutalist design with prong set round cut diamonds set around a large oval opal doublet with great play of color. C

A mid Victorian diamond brooch , circa 1870, the flower head shaped brooch set with old brilliant cut diamonds, mounted in gold backed silver, approximately 6.90 carats total, 3.2cm wide Offered for s

YELLOW GOLD AND OPAL SET Consisting of a brooch containing one cushion cabochon black opal measuring approximately 22.60 x 19.15 mm, together with a pair of earclips containing two oval cabochon opals

RARE CARVED OPAL, RUBY AND DIAMOND ORCHID BROOCH. in 18 ct. gold. The leaves of the orchid carved from single pieces of opal. The stems to the center set with rubies. The bottom set with diamonds. L.

and pendant, carved turquoise head, nine marquise shaped opal cabochons, 26 single cut diamonds estimated total weight 0.60ct., tested 18kt. yellow gold, 2 x 1-1/2 in., 25.5 grams Provenance: A Privat

IMPORTANT RUBY AND DIAMOND WIDE BRACELET, in 18 ct. gold. The lozenge-shaped links set with cabochon cut rubies, and diamond clusters. Flanked with triangular shaped cluster to the sides. Diamonds tot

set with cabochon ruby eyes, and four cabochon cut sapphires, 17 diamonds and a natural pearl.