An opal, diamond, and eighteen karat gold pendant,

A group of opal and diamond pendantsincluding a navette-shaped eighteen karat white gold pendant, centered by an oval cabochon opal, measuring approximately 15.60 x 9.80 x 3.65 mm, accented by round b

Eighteen/Twenty-Two-Karat White/Yellow Gold, Opal and Diamond Pendant, mounted with an oval-shaped opal, with an approximate weight of 1.50 carats, accented by twenty-three round-cut diamonds, with an

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

An emerald, diamond and eighteen karat gold pendantdesigned as a floral carved emerald, weighing approximately 12.00 carats, framed by round brilliant-cut diamonds. 3.2 Gross dwt; length: 7/8 in; widt

A Georgian diamond and eighteen karat gold pendant broochof filigree design, featuring a rose-cut diamonds set cross, joined by a heart-shaped surmount and a pear-shaped pendant set with rose-cut diam

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 pair of diamond and eighteen karat gold pendant earringseach a curling ribbon, accented by round brilliant-cut diamonds. 4.2 dwt.; Length: 1 1/8 in

An opal, diamond and fourteen karat gold pendant necklacedesigned as an oval cabochon opal, measuring approximately 29.20 x 17.20 x 8.40 mm, joined by a freeform gold surmount with single-cut diamond

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 jadeite, diamond and eighteen karat white gold pendant earringseach designed as a jadeite drop, measuring approximately 14.60 x 7.65 x 7.50 mm, suspending from a round cabochon jadeite, measuring ap

A diamond and eighteen karat white gold pendant designed as a clover set with square, round brilliant, and baguette-cut diamonds with diamond set bail; estimated total diamond weight: 1.25 carats. (2.

A diamond and eighteen karat white gold pendantdesigned as a floriform round brilliant-cut diamond cluster; estimated total diamond weight: 1.45 carats. 1.9 dwt; length: 7/8 in

A diamond and eighteen karat white gold pendant designed as a clover set with round brilliant and baguette-cut diamonds with diamond set bail; estimated total diamond weight: 1.00 carat. (2.4 dwt.; Le

A yellow diamond bi-color gold pendant necklacedesigned as a yellow round brilliant-cut diamond cluster, framed by beaded gold and near colorless diamonds, in an eighteen karat gold pendant, on a four

A pair of diamond and eighteen karat white gold earrings articulated pendant earrings, each suspending a bezel-set round brilliant-cut diamond, weighing approximately 0.85 and 0.90 carat each, accente

A contemporary 18K white gold and diamond necklace featuring an eighteen karat white gold square pendant set with eighty-five round brilliant-cut diamonds, set in individual decorative settings; estim

Approx. 12.81 Carat Opal, .93 Carats Diamonds and 18 Karat White Gold Pendant. Stamped 18K. Measures 1-5/8" x 1-1/2". Approx. weight 10.68 grams. Condition: As New Condition. Estimate: $800.00 - $1200

Carved Opal, Round Brilliant Cut Diamond and 14 Karat Yellow Gold Pendant / Brooch. Opal with lavender, blue and green color. Stamped 14K 585. Measures 2-7/8" H, 1-3/4" W. Condition: Very good vintage

Approx. 2.14 Carat Opal,3.38 Carats Diamonds and 18 Karat White Gold Pendant. Stamped 18K. Measures 1-1/4" x 1-1/4". Approx. weight 6.15 grams. Condition: As New Condition. Estimate: $500.00 - $700.00

A gemstone and eighteen karat gold pendant necklacedesigned as an open form round brilliant-cut diamond pavé set heart pendant, accented by a square-cut ruby, centered by a pear-cut sapphire, wei

centering one free form cabochon cut natural white opal measuring 55.80 x 28.00 x 3.65 mm weighing approximately 29.43 carats; and 19 full cut diamonds [I/VS] weighing approximately 1.82 carats total

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

Vintage Black Opal, Two Round Brilliant Cut Diamond and 14 Karat Yellow Gold Pendant. Opal with good play of multi-color. Measures 2" L, 1-1/4" W. Approx. weight: 23.33 grams Condition: Very good vint

Designed as a heart set with full cut diamonds; total diamond weight approximately 0.80 carat; in eighteen karat white gold. Pendant L: 3/4 in., Chain L: 14 in.; Gross weight: 3.89 dwt. All items are