STUNNING Australian HARLEQUIN BLACK OPAL triplet

Stunning large exceptional quality black Australian opal and diamond ring. Crafted out of platinum. Features a large natural solid black opal cabochon with an explosion of colors ranging from green, b

An Antique 18K and Platinum Tie Pin with Stunning Lighting Ridge Black Opal with Distinguished Harlequin Pattern • Black Opal Measures 7mm x 10mm x 2.6 mm / 1.01 Carat Approx • Surrounded by

Rare 1970's Yellow Gold and Black Opal Free Form Ring. The ring is centrally set with a large black opal triplet that measures 24mm x 15mm in width. It has an exhibition and vibrant harlequin play-of-

Ladies opal pendant with necklace. Features an opal triplet measuring 25mm x 13mm in a bezel setting and hanging from an 18k gold chain, measures 20 in. long. Weighs 9.3 grams. Marked 14K on the penda

One Oval-shape, Cabochon-cut Austrailian black opal 159.70 Carats in weight. Intense blue very even play of color, very good finish\\\' no blemishes ,38mmX33mmX23mm, in 14K gold, 3.40 ct diamond.If in

DESCRIPTION: An antique black opal pendant necklace. Features a 16-18 Carat Opal, further completed with diamond set platinum bow in a 14kt yellow gold setting. Complete with a 14kt yellow gold box ch

Fine Australian Black Opal & Diamond Pendant in 14K Yellow Gold includes 14K Gold Chain 11.25ctw * (estimate/approximately)

DESCRIPTION: An Antique beaded necklace comprised of Australian black opal, graduating in size, alternating with 18k yellow gold spacers and closure. Approx. 326 carats CIRCA: Early-Mid 20th Century O

DESCRIPTION: A Vintage beaded necklace crafted with oblon and spherical Black Australian opal, completed with a 18k yellow gold closure, stamped "18k". Total Weight: 202 carats CIRCA: Mid 20th Century

A BLACK OPAL TRIPLET BANGLE in 18ct yellow gold, the hinged bangle set with a black opal triplet, stamped 750, inner circumference 17.0cm, 42.1g.

Title: Australian Black Opal Certified - 4.02 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 4.02 ct Size/Dimensions: 12.17 x 12.02 x 3.63 mm Additional Information: Nat

Title: Australian Black Opal Certified- 4.57 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 4.57 ct Size/Dimensions: 19.57 x 12.48 x 2.81 mm Additional Information: Natu

Title: Lightning Ridge Australian Black Opal Certified- 2.68 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 2.68 ct Size/Dimensions: 11.43 x 8.56 x 4.30 mm Additional In

Italian 18kt yellow gold ring, black opal triplet cabochon, approx 15.65 x 8.00 mm, in a hand-engraved modernist setting, approx size 7.25-7.5, 13.7 grams (inclusive of all materials) **Provenance: A

BLACK OPAL..................Carat Weight:5.255 CTS;Size: (MM)17.8 X 11.8 X 6.1 MM;Quantity:1 PCSShape:PEAR;Color:BLACK;Origin:ETHIOPIA This item ships from Canada

Title: Australian Black Opal - 1.75 ct Metal Purity: Natural Gemstones: Australian Opal Carat Weights: 1.75 ct Size/Dimensions: 11.00 x 8.20 x 2.85 mm Additional Information: Natural Australian Lightn

Title: Lightning Ridge Australian Black Opal Certified - 1.10 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 1.10 ct Size/Dimensions: 9.68 x 7.74 x 2.15 mm Additional In

Title: Lightning Ridge Australian Black Opal Certified - 1.28 ct Brand: None Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 1.28 ct Size/Dimensions: 9.63 x 7.29 x 2.86 mm A

Title: Lightning Ridge Australian Black Opal Certified- 1.12 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 1.12 ct Size/Dimensions: 9.13 x 7.50 x 2.74 mm Additional Inf

Vintage, black opal triplet and diamond ring, 14K yellow gold, contains an oval black opal triplet and 26 single cut diamonds weighing approximately 0.75 carats total, G-H/VS-SI; 7.50 dwts, size: 7 1/

Ladies 14k gold and opal earrings. Features a pair of geometric reticulated earrings with triangular inlaid panel of Australian black opal. Marked 14k. Weighs 6.7 grams. Size 21mm x 12.5mm. Omega back

Title: Lightning Ridge Australian Black Opal - 1.15 ct Metal Purity: Natural Gemstones: Australian Opal Carat Weights: 1.15 ct Size/Dimensions: 8.10 x 7.70 x 2.90 mm Additional Information: Natural Au

Title: Lightning Ridge Australian Black Opal Certified - 1.45 ct Metal Purity: Natural, Certified Gemstones: Australian Opal Carat Weights: 1.45 ct Size/Dimensions:10.35 x 7.86 x 2.94 mm Additional In

Nice Australian black opals. Pair of ear rings, 1" stones. Silver chain with .75" charm..Date: Country (if not USA): State: City: Provenance: