An opal and eighteen karat gold ring

A black opal and eighteen karat gold ringdesigned as an oval opal, measuring approximately 17.80 x 12.00 mm, bezel-set within substantial gold mount. 8.0 dwt; size: 6 1/2

An opal and eighteen karat gold ringdesigned as spectacle-set oval cabochon opals, each measuring approximately 5.70 x 3.90 x 2.55 mm. 0.8 dwt; size: 7

A black opal, diamond and eighteen karat gold ringdesigned as an oval opal, measuring approximately 13.3 x 10.9 x 3.5 mm, within marquise and round brilliant-cut diamond mount; estimated total diamond

A black opal, diamond and eighteen karat gold ringdesigned as a pear cabochon black opal, measuring approximately 9.75 x 7.50 x 3.90 mm, framed by round brilliant-cut diamonds. 2.7 dwt; size: 10 1/2

A un-treated black opal, diamond and eighteen karat bi-color gold ringdesigned as an oval cabochon black opal, measuring 14.49 x 12.65 x 6.51 mm, within pierced and millegrained round brilliant-cut di

A group of gemstone and gold ringsincluding two Victorian eighteen karat gold rings, set with seed pearls and rubies; four Victorian fourteen karat gold rings set with opals, rubies or diamonds; a whi

A group of opal and gold jewelryincluding a pair of eighteen karat gold stud earrings, an eighteen karat gold pendant on fouteen karat gold chain, and a fourteen karat gold ring, set with oval cabocho

A color change alexandrite and eighteen karat gold ring centering a bezel-set cushion-cut alexandrite weighing approximately 10.00 carats, in fluted step mount. (10.5 dwt.; Size: 4 1/2) Provenance <

An unheated Burma ruby, diamond and eighteen karat gold ringdesigned as an oval-cut ruby, weighing 3.77 carats, flanked by two round brilliant-cut diamonds; accompanied by GIA report no. 2225345800, M

A rose quartz and eighteen karat gold ring, Haroldo Burle Marx Brazil designed as an oblong carved rose quartz measuring approximately 28.00mm x 14.70mm x 11.10mm, within polished bezel over brushed g

An unheated Burma ruby, diamond and eighteen karat gold ringdesigned as an oval-cut ruby, weighing 2.43 carats, flanked by two round brilliant-cut diamonds; accompanied by GIA report no. 6224358881, M

A turquoise, diamond, and eighteen karat gold ringcentering a round turquoise cabochon measuring approximately 9.10 mm, secured by straps of baguette-cut diamonds in a pavé-set round brilliant-cut di

A diamond and eighteen karat gold ring the wide gold band centering a pear shaped diamond weighing approximately 1.30 carats, bezel-set in white gold. (7.7 dwt.; Size: 9)Condition report: Please note

SAPPHIRE, DIAMOND AND EIGHTEEN KARAT GOLD RING. The heavy 18k white gold ring with round-cut diamonds pave' set around a large oval-cut sapphire with an estimated weight of 16.58 cts. Total combined e

A star ruby, diamond and eighteen karat gold ringdesigned as a round cabochon star ruby, weighing approximately 6.15 carats, claw-set within circular cut diamond frame, flanked by channel set baguette

A tourmaline, diamond and eighteen karat gold ringcentering a carved pink tourmaline, weighing approximately 4.00 carats, surrounded by full-cut diamonds; Estimated total diamond weight: 0.60 carat. G

A jadeite and eighteen karat gold ringof geometric band design, centered by a bezel-set oval cabochon jadeite, measuring approximately 12.25 x 8.90 x 3.90 mm. 15.6 dwt; size: 6 1/4

An unheated ruby and eighteen karat gold ringdesigned as an oval-cut ruby, weighing approximately 2.90 carats, inset within polished band, flanked by diamonds; accompanied by GIA report no. 2225600437

A diamond and eighteen karat gold ring, Haroldo Burle Marx Brazil designed as a round brilliant cut diamond weighing approximately 0.65 carat, six-prong set over a polished and brushed gold geometric

A blue tourmaline and eighteen karat gold ring, Haroldo Burle Marx Brazil designed as a carved tourmaline measuring approximately 23.00mm x 20.50mm x 10.00mm, within polished bezel over brushed geomet

A gemstone and eighteen karat gold ringdesigned as a fluted carved blue beryl, measuring approximately 16.20 x 10.30 mm, framed by briolette-cut green or blue sapphire beads, between single-cut diamon

SAPPHIRE, DIAMOND AND EIGHTEEN KARAT GOLD RING. The heavy 18k white gold ring with round-cut diamonds pave' set around a large oval-cut sapphire with an estimated weight of 16.58 cts. Total combined e

A tanzanite and eighteen karat gold ringdesigned as spectacle-set tanzanites; total tanzanite weight: 10.87 carats. 2.1 dwt; size: 7

A gemstone and eighteen karat gold ringdesigned as a cluster of fancy-cut amethyst, citrine, tanzanite, blue topaz, peridot and tourmaline, centered by a round brilliant-cut diamond. 3.8 dwt; size: 7