An opal and diamond cluster ring, the oval cabocho

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

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

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

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 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 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 in 18ct yellow gold, set with an oval cabochon opal in a cluster of rose cut diamonds, French import mark, size O / 7, 3.9g.

OPAL AND DIAMOND CLUSTER RING, in 18 ct. gold. Set with an oval cabochon cut opal with nice color play, surrounded with diamonds. Size N. 3.1 grams.

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

AN OPAL AND DIAMOND CLUSTER DRESS RING in yellow gold and silver, set with an oval cabochon opal within a border of old cut diamonds, no assay marks, size N / 6.5, 4.6g.

comprising a cluster ring set with 3 oval opals and 5 round brilliant-cut diamonds, a pendant set with nine navette-shaped opals, and a pair of clip earrings set with oval-shaped opals measuring appro

Seven fine and semi-fine jewelry items including a sterling silver ring with approximately 28mm x 19mm turquoise stone; a sterling silver cluster ring with seven oval opals; an 18K yellow gold electro

A set of opal and diamond floral jewellery. The ring designed as oval opal cabochon and diamond accent floral cluster with rope-twist and polished bar scrolling sides, with a similarly-set pair of fol

Two 18ct gold diamond and gem-set rings. To include an oval opal cabochon single-stone ring with brilliant-cut diamond stepped sides, together with a ruby and diamond cluster ring. Estimated total dia

Vintage Large White Opal, Approx. 2.50 Carat TW Marquise Cut Ruby, 1.50 Carat TW Oval Cut Diamond and 18 Karat Yellow Gold Cluster Ring. Opal with good play of multi color. Diamonds D-E color, VS1-VS2

An 18ct gold opal and diamond novelty brooch, and an 18ct gold gem-set cluster ring. The brooch designed as a pair of sunglasses with oval opal cabochon lenses and brilliant-cut diamond bridge, the ri

A group of Early 20th Century opal and fourteen karat gold jewelryincluding a pair of floriform oval jelly opal cluster stud earrings; two rings set with oval opal cabochons or old mine-cut diamonds.

18k Yellow Gold, Semi-Precious Gemstone and Diamond Rings (2) rings including one having an oval cut dark opal surrounded by round cut cluster set diamonds; and the other having a hawk eye surrounded

18ct gold hallmarked black opal & diamond cluster ring: Outstanding ring supplied by Boodles, ring size T, 24 small but high grade diamonds. Opal measures 16mm x 11mm.