An aqumarine and diamond ring, the collet set oval

AN EMERALD AND DIAMOND CLUSTER RING The collet-set oval-shaped emerald within a double brilliant-cut diamond frame, mounted in 18K gold, diamonds approximately 1.80ct total, ring size O

A set of three pink tourmaline and diamond stacking rings each collet-set with an oval or emerald-cut pink tourmaline, two rings with diamond set shoulders, modelled in 18ct or 22ct gold(Ring size: O/

A sapphire and diamond ring, by Eric N Smith collet-set with an oval-shaped sapphire and two round brilliant-cut diamonds, modelled in 18ct gold(Ring size: O)

RUBY AND DIAMOND RING The oval-cut ruby collet-set between two brilliant-cut diamonds with single-cut diamond scrolling shoulders, ring size approx. M½ Footnotes: Accompanied by a report from The

A gem-set dress ring Collet-set with an oval cabochon sapphire within a raised mount, set with pairs of cabochon emeralds and rubies and bands of brilliant-cut diamonds (Ring size: N)

An emerald and diamond dress ring. The oval-shape emerald collet, to the pave-set diamond bifurcated shoulders and tapered band. Estimated total diamond weight 1.05cts. Hallmarks for London, 1979. Wei

A 9ct gold sapphire and diamond dress ring. The oval-shape sapphire collet, within an illusion-set diamond surround, to the square-shape sapphire and illusion-set diamond border. Hallmarks for Birming

A blue stone ring, the oval cabochon blue stone collet set within a foliate detail surround accented with brilliant cut diamonds, stamped 750, finger size K 1/2

An emerald and diamond ring, the oval cut emerald within a collet setting, on a pierced shank set with brilliant cut diamonds, approximately 1.20 carats total, finger size N 1/2

Emerald, ruby and sapphire in their own individual settings can be set into collet and locked into bezel. Surrounded by an oval ring of diamonds. Stones approximately 3/8 inches. Ring with (1) stone w

An emerald and diamond cluster ring. The oval-shape emerald collet, within a brilliant-cut diamond halo and surround, to the similarly-set sides and plain band. Estimated total diamond weight 0.60ct.

A diamond and gem-set dress ring. The oval emerald, ruby and sapphire cabochon collet curved line, to the pave-set diamond sides and tapered band. Estimated total diamond weight 0.10ct. Ring size I. W

A LATE 18TH/EARLY 19TH CENTURY INTAGLIO RING, the oval intaglio carnelian, carved with the head of a man, 8.3mm wide, collet mounted and set to either side with a rose cut diamond, collet mounted with

Two diamond and gem-set rings. The first designed as an old-cut diamond collet diagonal line with asymmetric sides, the second designed as a 9ct gold oval-shape emerald with single-cut diamond surroun

14K Yellow Gold & Diamond Ring Set, oval center .8ct diamond, flanked by 4 baguette and 6 round diamonds (2 pcs.) [32] (JTEX8315/2) {PR} Property Title: Measurements:Size 7.5

14 kt. Rose Gold, Morganite and Diamond Ring, set with oval brilliant cut morganite, approx. 3.71 ct., surrounded by 74 single-cut diamonds totaling approx. .32 ct., Color E-G, Clarity SI-2 to I-1; wi

A SYNTHETIC SAPPHIRE RING The collet-set oval-cut synthetic sapphire, between bi-coloured tapering accented shoulders, stamped 18K, ring size O 1/2.  Gross weight approx. 5 grams.

A RUBY AND DIAMOND RING set with an oval cut ruby of 6.97 carats in a cluster of round brilliant cut diamonds, with further diamonds to the band, stamped 750, size N / 6.5, 8.1g.

A RUBY AND DIAMOND RING set with an oval cut ruby of 6.97 carats in a cluster of round brilliant cut diamonds, with further diamonds to the band, stamped 750, size N / 6.5, 8.1g.

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 4.90 carats accented by round brilliant cut diamonds to the band, stamped 750, size M / 6, 6.0g.

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 2.81 carats, in a border of round and baguette cut diamonds, the shoulders accented by further diamonds, no assay marks, size N / 6.5, 4.7g

AN EMERALD AND DIAMOND RING Set with an oval emerald cabochon with graduated brilliant-cut diamonds to either side, between bifurcated shoulders with ropetwist detailing, mounted in 14K gold, London i

A CITRINE AND DIAMOND RING set with an oval cut citrine of 28.59 carats, in a border of round brilliant cut diamonds, with further round brilliant cut diamonds set to the band, stamped 750, size K / 5

AN EMERALD AND DIAMOND DRESS RING, the collet-set rectangular-cut emerald between tapered baguette-cut diamond shoulders, mounted in 18K gold, Italian assay mark, ring size O