AN OPAL DRESS RING in yellow gold, set with a marquise

A VINTAGE BLACK OPAL DRESS RING in yellow gold, set with a round cabochon opal, full British hallmarks for London 1974, size O / 7.25, 5.5g. 

AN OPAL DRESS RING in yellow gold, set with an oval cabochon opal weighing 3.05 carats, no assay marks, size N / 6.75, 4.2g.

AN ANTIQUE OPAL AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of graduated oval cabochon opals, accented by pairs of old European brilliant cut diamonds, full British hallmarks (partly o

AN OPAL AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cabochon opal accented by round brilliant and princess cut diamonds, the diamonds all totalling 1.2-1.4 carats, British h

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.

AN ANTIQUE OPAL AND DIAMOND DRESS RING, 19TH CENTURY in 18ct yellow gold, set with a central round cabochon opal between two kite shaped cabochon opals, the central opal within a border of old cut dia

AN OPAL AND DIAMOND DRESS RING in high carat yellow gold and silver, set with an oval cabochon opal within a border of rose cut diamonds, with stylised decoration to the band, unmarked, size N / 7, 3.

AN ANTIQUE OPAL AND DIAMOND DRESS RING in high carat yellow gold, the face set with five graduated oval cabochon opal accented by single cut diamonds, with textured decoration to the band, unmarked, s

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the oval face set with four marquise cut blue sapphires accented by single cut diamonds, full British hallmarks, size J / 4.5, 4.8g. Guaranteed U

A DIAMOND DRESS RING, MAUBOUSSIN in 18ct yellow gold, set with a principal old cut diamond of 2.44 carats flanked above and below by marquise and round cut diamonds, signed Mauboussin Paris, French as

A RUBY AND DIAMOND DRESS RING in high carat yellow gold, the marquise shaped face set with a round cut ruby, within a surround of old cut diamonds, unmarked, size O / 7, 2.8g.

Three Opal and 14 Karat Yellow Gold Rings. Comprising an oval prong set opal ring, a mosaic opal ring, and a cocktail ring containing four prong set marquise opals Sizes: 7, 8, 9 Wt: 10.8 grams

Comprising one with prong set peridot, weighing approx. 1 carat, pear form green stone, opal set marquise shape, total gross weight approx. 5.25dwts. Ring sizes 5-3/4, 5-1/2, 8-1/2 respectively.

This is a stamped 18kt yellow gold chevron shaped custom fine opal and diamond ring. Set with five graduated marquis opal cabochons in a four rope design. Eight round diamonds measure approximately 0.

LADY'S RUBY & OPAL 18KT YELLOW GOLD CLUSTER RING :Set with: 9 round natural rubies, 0.70 carats. 16 oval and marquise shape opals. Marked Thailand. Total weight 3.6 grams. From the estate of Rose Ann

Ladies' vintage 18 karat yellow gold Casbah cocktail ring, set to the center with large marquise cut opal stone, encircled by approx. seventeen round brilliant cut diamonds and seventeen round opal ac

Set with a marquise opal approx. 10x5mm, and 6 side diamonds approx. 0.18 carats, in yellow gold stamped 14K, size 4.75, 2.1gms.

each set with a marquis opal approx. 12x6mm, accented with diamond melee, overall heights 18mm, hinged bangle interior measures 2.25x2in., safety catch, ring size 8, in yellow gold (diamonds set in wh

A GROUP OF 10K GOLD AND GEM-SET RINGS • 10k yellow gold • 1 moonstone bead, 8 marquise and 4 round garnets, 1 oval synthetic ruby, 1 oval amethyst, 1 round opal cabochon • Sizes 5, 5

A COCKTAIL RING. 18 karat yellow gold modernist mounting contains one prong set round opal cabochon, one prong set oval green tourmaline, one prong set round garnet and one prong set marquise blue top

A FINE PERIDOT DRESS RING in yellow gold, set with an emerald cut peridot of 22.09 carats, size M / 6, 9.4g.

A MULTIGEM DRESS RING in yellow gold, set with variously cut amethyst, citrine, pink tourmaline, smokey quartz, aquamarine, tanzanite, prasiolite and peridot, accented by round brilliant cut diamonds,

A DIAMOND DRESS RING in yellow gold, set with three rows of old cut diamonds, all totalling 2.2-2.5 carats, no assay marks, size P / 7.5, 6.3g.

A CEYLON NO HEAT SAPPHIRE DRESS RING in yellow gold, set with a row of six cushion cut blue sapphires, all totalling 2.36 carats, no assay marks, size N / 6.75, 2.2g. Accompanied by a gemmological rep