AN OPAL AND DIAMOND PENDANT set with a polished opal of approximately 40.80 carats accented by round

14 Karat yellow gold pendant bezel set with one oval cabochon cut Sugar-treated Opal, approximately 69.07 carats, accented with 18 full cut round Diamonds [H/VS], approximate total weight 0.54 carats

A FINE OPAL AND DIAMOND PENDANT NECKLACE in 18ct white gold, set with a cabochon opal of 9.40 carats accented by round cut diamonds, stamped Au750, pendant 3.7cm, chain 45.0cm, 5.4g.

Opal and Diamond Pendant with Chain 18k yellow gold, the pendant mounted with an oval cabochon-cut opal weighing approximately 9.48 carats, accented by round brilliant-cut diamonds weighing approximat

A BLACK OPAL AND DIAMOND PENDANT in 18ct yellow gold, set with a cabochon black opal of 3.40 carats, the bail accented by three round cut diamonds, stamped 18K, 2.2cm, 1.4g.

Featuring a white opal weighing approximately 1.60 carats; accented by round brilliant-cut diamonds set around the perimeter as well as the bottom of the shank, weighing a total of approximately 1.25

An Opal and Diamond Pendant / Enhancer. Asymmetrical cut opal is approximately 1.00 carat. Prong set round brilliant diamond is .10 carat Wt: 1.7 grams

white gold brooch center bezel set with one oval cabochon cut White Opal, approximately 54.80 carats, accented with 46 full cut round Diamonds [I/I-1], approximate total weight 0.48 carats, 27.1 grams

circa 1970s, set to the front with one oval cabochon opal weighing approximately 5.60 carats and accented with prong set round brilliant cut diamonds weighing approximately .69 total carat (H-J color,

Pendant necklace featuring a large cushion-cut cabochon Ethiopian opal weighing approx. 13.18 carats, accented by (49) round brilliant cut diamonds totaling approx. 0.65 carats; these set in an openwo

A 14K GOLD, OPAL AND DIAMOND PENDANT Centering an oval cabochon opal weighing approximately 88.50 carats set in an abstract gold and round diamond frame, measures 2 1/4 x 1 1/2 in.

Gold, Opal Doublet, and Diamond Pendantrectangular tablet inset with a freeform opal doublet (21.75 x 8.5 mm) and accented with a full cut round diamond melee weighing approximately .03 carat (H color

Gold, Opal, and Diamond Pendantdesigned in a freeform leaf motif centering on a bezel set cabochon opal and with full cut round diamond melee weighing approximately .08 total carat (G-H color, SI clar

14K Yellow Gold, Diamond, and Black Opal Pendant. Circa 1970, set with three round diamonds, totaling approximately .25 carats. [30B549](CDB10320)(PR) Measurements: 1 1/8" diameter. Condition: Good.

set with 17 oval opals (center opal 7x6mm), accented with 24 round diamonds approx. 1.00 carats, in yellow gold stamped 14K, 1.6x1.5in., 12.5gms.

Statement necklace with contemporary slide pendant set with cushion shaped opal and round full cut diamond. Opal is 9/16" by 3/8" and diamond is approximately .20 carat. Woven mesh chain 16" long. 30.

Unusual Opal and Diamond Ring 18k yellow gold, the ring mounted with an oval opal cabochon weighing approximately 5.80 carats, set in a gold mounting in the form of branches, accented with round brill

14K yellow gold pendant necklace, brightly polished, featuring 5 opals, flush set, further decorated with 4 channel set round brilliant cut diamonds weighing a total of approx. 0.10 carat, pendant det

Crafted of 14k gold. Center pendant set with a 10mm trillion cut deep purple blue Tanzanite gemstone of approximately 4.8 carats. Surmounted and flanked by Gilson black opal gemstones. Accented by rou

Gold, Carved Opal, and Diamond Pendantthe carved opal cameo depicting a pair of swans, bezel set in a gold frame with full cut round accent diamonds weighing approximately .14 total carat (H-I color,

Ladies 18K white gold ring featuring a natural cabochon opal approximately 23.50 carats, accented by 268 round brilliant diamonds approximately 2.49 carats, Clarity-I1, Color-I in a link chain design

ATELIER NAKA YAMA, AN OPAL, DIAMOND, SAPPHIRE AND GREEN GARNET PENDANT AND CHAIN the pendant set with an opal cabochon, accented by round cut sapphires and green garnets, suspended from a trace chain,

Opal, Diamond and Onyx Ring 14k white gold, the ring mounted with a pear-shaped cabochon-cut opal weighing approximately 2.45 carats, accented by baguette- and round brilliant-cut diamonds weighing ap

Opal and Diamond Ring 14k yellow gold, the ring mounted with an opal doublet weighing approximately 2.09 carats, accented by round brilliant-cut diamonds weighing approximately 0.23 carats in total. s

Black Opal and Diamond Ring 14k yellow gold, the ring mounted with a black opal doublet weighing approximately 1.76 carats, accented by round brilliant-cut diamonds weighing approximately 0.17 carats