An opal and diamond cluster ring. The oval-shape opal,

An opal and diamond cluster ring. The oval-shape opal, within a vari-cut diamond surround and shoulders. Ring size N. Weight 7.7gms. Overall condition fair to good. Some surface scratches/ wear, disco

OPAL AND DIAMOND CLUSTER RING The oval opal cabochon, within a brilliant-cut diamond surround, ring size approx. M

OPAL AND DIAMOND CLUSTER RING The oval opal cabochon, in a double tiered, brilliant-cut diamond surround, one diamond deficient, several possible diamond simulants, ring size approx. K (sizing band)

An opal and diamond cluster ring. The oval opal cabochon, with brilliant-cut diamond scalloped surround and similarly-cut diamond line shoulders. Estimated total diamond weight 0.15ct. Ring size N. We

An opal and diamond cluster ring. The oval opal cabochon, with rose-cut diamond surround. Ring size L. Weight 3.7gms.

BOULDER OPAL AND DIAMOND CLUSTER RING The oval boulder opal within a radiating surround set with brilliant-cut diamonds, ring size approx. N

A late Georgian gold opal and diamond ring. The oval-shape opal, with diamond surround, to the pale blue enamel band reading 'Tim Terry Ob 16 Apr 1736 Ae 29'. Ring size O. Weight 4.6gms.

An Edwardian 18ct gold opal and diamond ring. The oval-shape opal line, with old-cut diamond spacers and scrolling gallery. Estimated total diamond weight 0.15ct. Hallmarks for London, 1903. Ring size

An 18ct gold opal and diamond cluster ring. The oval opal cabochon, within a single-cut diamond surround, to the tapered band. Estimated total diamond weight 0.35ct. Hallmarks for London, 1978. Ring s

An early 20th century gold, opal and diamond cluster ring. The heart-shape opal cabochon, with old-cut diamond surround. Estimated total diamond weight 0.45ct. Ring size N. Weight 3.6gms.

An 18ct gold fire opal and diamond dress ring. The oval-shape fire opal, with pave-set diamond shoulders. Estimated dimensions of fire opal 18 by 13 by 9mms. Hallmarks for Birmingham, 2011. Ring size

A Yellow Gold, Opal and Diamond Ring, containing one oval shape cabochon cut opal measuring approximately 16.65 x 11.50 x 6.30 mm and 16 round brilliant cut diamonds weighing approximately 1.50 carats

A BLACK OPAL AND DIAMOND CLUSTER RING LONDON 1975The oval cabochon black opal within a surround of brilliant cut diamonds, approximately 0.48 carats total, the 18 carat gold shank stamped with sponsor

An opal and diamond cluster ring claw-set with an oval opal cabochon, in a single border of ten round brilliant-cut diamonds, indistinctly marked(Ring size: Q/R)

An opal and diamond cluster ring claw-set with an oval cabochon opal, in a border of old round-cut diamonds, unmarked(Ring size: U)

An opal and diamond cluster ring claw-set with an oval cabochon opal in a border of round-cut diamonds, to a plain band, stamped 18ct(Ring size: K)

An early 20th century 18ct gold diamond and opal dress ring. The oval-shape opal cabochon line, with old-cut diamond spacers. Hallmarks for Birmingham, 1916. Ring size N1/2. Weight 3.5gms. Overall con

A Beautiful 14Kt Yellow Gold Diamond Ring with an Oval Shape Opal stone in the center. The Opal weights 1.35ct. The ring also has a total of 6 round brilliant diamonds set on the sides. Ring size is 7

This is a gorgeous 14kt Yellow Gold diamond ring with an Oval shape Opal stone in the center. There are also Sapphire and diamonds stones set around the center stone. The Opal stone measures 8.00x6.00

A beautiful 14kt yellow gold diamond ring with an oval shape Opal in the center. The ring also has 4 round brilliant diamonds around the center stone. Ring size: 6.75. SKU02P24.

A ladies 14kt Yellow Gold Diamond ring. Ring has a round diamond in the center and 2 Oval shape Opal stones. Total weight 2.60 grams.

A ladies 14kt Yellow Gold Diamond ring. Ring has a round diamond in the center and 2 Oval shape Opal stones. Total weight 2.60 grams.

14kt Gold, Opal, and Diamond Ring 14kt yellow gold (stamped and tested), size 5.5, 10.5 grams total weight, split shank with semi-polished finish, with 13.0mm oval shape opal stone cabochon (strong gr

3 ANTIQUE OPAL AND GOLD RINGS: 1.) Romany (Hans Stern Romany)14K Opal and Diamond Cluster Ring, in shades of blue and green, fur oval opal cabochons surround a prong set center diamond, size 8,stamped