18K Yellow Gold Oval Cabochon Natural Black Opal

Lady's 18K Yellow Gold Black Star Sapphire Ring, oval cabochon natural black sapphire measures approx. 12x10mm, displays moderately definted 6-point star, Size 6-1/2, 4.1 dwt

Marina B 'Novia' opal, sapphire, and black onyx earrings Each set with cushion and oval opals, enhanced by cabochon black onyx, and pave-set circular-cut sapphires 18k yellow gold Signed Marina B, num

This is a 1970's 18k yellow gold and black Australian opal ring with a total of 6.60Cts.  The ring is centrally set with an oval cabochon cut opal that measures 17.80mm x 13.00mm x 4.99mm.  The opal

A handmade 18k yellow gold necklace pendant, in three separate sections, the bottom with large natural cabochon oval bezel set Mexican fire opal (color: dark orange, clarity: semi-transparent, approx.

An 18k gold band with three inset round amethyst cabochons; An oval black opal doublet in substantial 14k gold square head. Size 6. 11.1 dwt.

Two pair of opal earrings, together with an opal and diamond ring. The largest earring pair composed of 18K yellow gold set with oval black opals of approximately .70 carats each. Overall earring meas

NO RESERVE - AN ANTIQUE BLACK OPAL AND DIAMOND BAR BROOCH, CIRCA 1910, Made in yellow gold and platinum, Oval cabochon black opal, weighing approximately 1.61 carats, Single cut and rose cut diamonds,

Pair of 18K yellow gold natural oval cabochon blue sapphire folding clip cuff links. The sapphire measures 7.70 mm by 5.80 mm. Marked "18KT" along the clip, and "S 417" along the p

18 karat yellow gold ring with one oval cabochon semi-Black Opal with gray background that weighs 15-1/2 carats. 41 round full cut diamonds at 0.84 NEIMAN MARCUS. Appraised Fair Market Value (FMV) is

NO RESERVE - A BLACK OPAL AND DIAMOND PENDANT NECKLACE, CIRCA 1910, Made in 15 carat yellow gold, platinum and 18 carat yellow gold, the chain later added, Oval cabochon black opal, weighing approxima

AN 18K GOLD PENDANT AND 14K GOLD AND OPAL RING • 18k and 14k yellow gold • 4 oval opal cabochons • Pendant measures 1 1/2 x 1 3/8 in., ring size: 6 • Estimated gross weight: 15

18K YELLOW GOLD MOUNTED PRECIOUS WHITE OPAL OVAL CABOCHON PENDANT ON CHAIN. Bezel-set opal of blue-green flash suspended on 18" gold-filled herringbone link chain. - Pendant, L: 1 1/4", with bail.

Men's 18K yellow gold ring with center bezel set ethiopian oval cabochon opal that weighs 12.39cts and has a yellowish orange color with orange and green color play. Bezel set on each side is a triang

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

Opal, Diamond, 18k Yellow Gold Ring. Featuring one oval shaped opal cabochon measuring approximately 23.2 x 14.1 mm, accented by twelve full-cut diamonds weighing a total of approximately 0.65 cttw.,

Nice Bold Ring crafted in 18k yellow Gold, set with a Natural Oval Cabochon Citrine Approx. 16 carats. Top measurements: 0.8 x 0.6 iches. Total weight: 9.7 grams. Ring size: 6.5. Stamped with Makers m

Opal, Diamond, 18k Yellow Gold Ring. Featuring one oval shaped opal cabochon measuring approximately 11 x 8.9 mm, accented by forty-six round-cut diamonds weighing a total of approximately 0.15 cttw.,

Opal, 18k Yellow Gold Ring. Featuring one oval shaped opal cabochon measuring approximately 7.5 x 6.3 mm, surrounded by twelve full-cut diamonds weighing a total of approximately 0.10 cttw., set in an

Opal, Diamond, 18k Yellow Gold Ring. Featuring one oval shaped opal cabochon measuring approximately 18.15 x 13.1 mm, accented by four full-cut and six baguette-cut diamonds weighing a total of approx

Ring made of brightly polished 18K yellow gold, featuring a prong set oval opal cabochon, weighing approx. 0.60 carat, marked: "750 and with a maker's mark". Measuring US size 4 3/4, approx. 2.4 dwt.

18k Yellow Gold, Opal and Gemstone Jewelry Assortment (2) items including a ring having an elongated oval cabochon opal flanked by round cut diamonds and a pendant having a 4.45 carat free-form flat o

Opal and gold ring Set with an oval cabochon opal weighing approx. 17.65 cts in an engraved gold mount 18k yellow gold Ring size 6 1/2; Gross weight 12.6 dwts

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

BLACK OPAL AND DIAMOND RING Containing one oval cabochon black opal measuring 10.85 x 9.00 mm and 12 round brilliant cut diamonds weighing approximately 1.20 carats total. Mounted in yellow gold. Ring