A TURQUOISE AND DIAMOND RING set with an oval cabochon turquoise in a border of round cut diamonds,

A VINTAGE TURQUOISE, SAPPHIRE AND DIAMOND RING, BEN ROSENFELD 1972 in 18ct yellow gold, set with an oval turquoise cabochon of 7.35 carats, encircled by a border of round cut diamonds totalling 2.0-2.

A TURQUOISE AND DIAMOND CLUSTER RING set with a domed cabochon turquoise in a border of round brilliant cut diamonds, the shank accented with further diamonds, the diamonds all totalling 1.2-1.4 carat

A TURQUOISE AND DIAMOND RING in 9ct yellow gold, set with a round cabochon turquoise in a border of round brilliant cut diamonds, full British hallmarks for 9ct gold, size O / 7, 2.3g.

View a video of this lot: Click HereCrafted in platinum and 18K white gold; set with oval cabochon turquoise; marquise brilliant, round brilliant and baguette cut diamonds, weighing a

14K yellow gold ring featuring an oval cabochon turquoise prong set in center and surrounded by round cut diamonds and multiple layers of bead set lapis lazuli beads, wide textured shank, sz 6, 29.5 g

Featuring a centered oval-shaped cabochon turquoise, surrounded by 20 round brilliant-cut diamonds, weighing a total of approximately 0.80 carats, set in 14K yellow gold; ring size 6; weight 19.1 g

A turquoise, diamond and fourteen karat bi-color gold ringdesigned as an oval turquoise cabochon, measuring approximately 10.80 x 8.90 x 4.00 mm, flanked by round brilliant-cut diamond set ribbons in

GOLD, TURQUOISE, CULTURED PEARL AND DIAMOND RING In a domed design and set with oval-shaped cabochon-cut turquoise and cultured pearls with accents of round diamonds with an estimated weight of 0.25 c

Antique Turquoise and diamond ring Set with an oval cabochon turquoise surrounded by old mine-cut diamonds Platinum and yellow gold Ring size 5; Gross weight 5.0 dwts

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)

METAL: 18K yellow gold and platinum GEMSTONE(S): oval cabochon turquoise; round brilliant cut diamonds approx. 1.28 carats total, most G-H/SI2-I1 MEASUREMENTS: ring top 1-3/8 x 1 inches RING SIZE: 7-1

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)

A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon coral within concentric borders of round cut diamonds and pear shaped cabochon coral, stamped 18K, size M / 6.5, 15.5g.

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)

TURQUOISE AND DIAMOND RING Containing one oval cabochon turquoise measuring approximately 15.95 x 11.50 x 7.85 mm and 22 round brilliant cut diamonds weighing approximately 0.50 carat total. Mounted i

TURQUOISE AND DIAMOND RING Containing one oval cabochon turquoise measuring approximately 15.55 x 11.80 mm, four square cabochon turquoise and 24 round brilliant cut diamonds weighing approximately 0.

A MOONSTONE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cabochon moonstone within a border of round brilliant cut diamonds, full British hallmarks, size M / 6, 3.8g.

AN ANTIQUE TURQUOISE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cabochon turquoise in a cluster of rose cut diamonds, no assay marks, size M1/2 / 6.5, 3.4g. 

A TURQUOISE AND DIAMOND SWEETHEART RING in yellow gold and silver, designed as a ribbon above two hearts set with cabochon turquoise in borders of rose cut diamonds, no assay marks, size M / 6.25, 2.8

AN ANTIQUE TURQUOISE AND DIAMOND RING in yellow gold and silver, set with five cabochon turquoise surrounded by a border of old cut diamonds, no assay marks, size M1/2 / 6.5, 4.3g.

A PAIR OF WHITE GOLD, CULTURED PEARL, TURQUOISE AND DIAMOND EARRINGS Suspending cultured pearls from a round ornate frame set with oval turquoise cabochons, round and rose-cut diamonds, measures 4 1/4

A TANZANITE, RUBY AND DIAMOND RING in 18ct white gold, set with an oval cabochon tanzanite of 20.78 carats, within a border of round cut diamonds, accented by round cut rubies to the shoulders, stampe

A TURQUOISE AND DIAMOND DRESS RING Set with an oval-shaped turquoise cabochon at the centre, within a surround of brilliant-cut diamonds, mounted in gold, diamonds approximately 2.70ct total, ring siz

TURQUOISE, DIAMOND AND SAPPHIRE RING Containing one oval turquoise cabochon measuring approximately 18.00 x 15.00 mm, eight round brilliant cut diamonds weighing approximately 0.85 carat total and eig