A sapphire dress ring. Of crossover design, the

DIAMOND DRESS RING Of crossover design, set with baguette, tapered baguette and brilliant-cut diamonds, diamonds approx. 3.25cts total, ring size approx. N (leading edge)

DIAMOND AND BLACK DIAMOND DRESS RING Of crossover design, set with rows of brilliant-cut diamonds and treated black diamonds, ring size approx. O

A diamond dress ring. Of crossover design, with brilliant-cut diamond lines. Estimated total diamond weight 0.15ct. Italian marks. Approximate ring size O. Weight 9.6gms.

DIAMOND AND BLACK DIAMOND DRESS RING Of crossover knotted design, set to one side with circular-cut treated black diamonds and brilliant-cut diamonds within blackened metal settings, ring size approx.

A sapphire dress ring. Of geometric design, with the circular-shape sapphire detail and tapered shoulders. Ring size O1/2. Weight 7.1gms.

A SAPPHIRE AND DIAMOND RING in crossover design, set with baguette cut sapphires totalling 0.50 carats, and baguette cut diamonds totalling 0.50 carats, stamped 18k, size N / 6, 5.3g.

SAPPHIRE AND DIAMOND DRESS RIng, of navette design, set with a central diamond, further flaned with diamonds, a blue sapphire row and a further diamond row. Diamonds totalling approx. 0.40 ct. Size M

A sapphire and diamond dress ring. Of asymmetric design, the graduated cushion-shape sapphire and marquise-shape diamond lines, with a triangular-shape diamond side, to the baguette-cut diamond curved

SAPPHIRE AND DIAMOND DRESS RING, of part openwork design. Set with a central blue sapphire of approx. 0.62 ct. Flanked with diamonds totalling approx. 0.20 ct. Size L. 3.3 grams.

A sapphire and diamond two stone ring, of crossover design with the old cushion cut diamond, estimated weight approximately 0.50cts, claw set obliquely to a similarly sized deep royal blue sapphire, e

AN ANTIQUE RUBY AND DIAMOND DRESS RING in high carat yellow gold, the crossover design with a round cut ruby of approximately 1.0 carats, opposing a trefoil motif jewelled with diamonds totalling 1.15

AN ART DECO DIAMOND AND SAPPHIRE DRESS RING in yellow gold and platinum, of target design, set with a cluster of old European cut diamonds, within a border of calibre cut blue sapphires, with further

14k gold sapphire ring, double row of round channel set sapphires (may be synthetic) with crossover design, size 8.25, stamped 14k T.H.L., weight 5.9 grams/3.8 dwt

GEM-SET AND DIAMOND DRESS RING Of bombé design, set with brilliant-cut diamonds and circular-cut sapphires, rubies and emeralds, ring size approx. Q For further information on this lot please vis

TIFFANY & CO., JEAN SCHLUMBERGER, A STAR SAPPHIRE AND DIAMOND DRESS RING The oval cabochon star sapphire estimated to weigh between 55 to 60 carats, to crossover pavé set diamond leaf shoulders, ap

A GREEN SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1940 in 18ct yellow gold, in abstract design, set with an emerald cut green sapphire and four round cut diamonds, stamped 18K, size O / 7, 7.3g.

SAPPHIRE AND DIAMOND DRESS RING, the head of marquise shape and openwork design. Set with a larger central diamond, flankde with blue sapphires and further diamonds, diamonds totalling approx. 0.40 ct

1.05ctw Blue Sapphire, 0.45ctw VS1-VS2/G-H Diamond & Solid Platinum/18K Yellow Gold Ring - This stunning ring was finely crafted of solid platinum, and has a clean and modern crossover design. The rin

An 18ct gold sapphire and diamond dress ring. The oval-shape sapphire duo, with brilliant-cut diamond accents and crossover band. Import marks for Birmingham, 1977. Ring size H. Weight 3.9gms.

A 9ct gold sapphire and diamond dress ring. The oval-shape sapphire, within a brilliant-cut diamond crossover border. Estimated total diamond weight 0.40ct. Hallmarks for Birmingham, 1993. Ring size J

Gold and Gem-Set Stackable Ringsin a crossover and stackable design, one with channel set square cut emeralds, one with rubies, and one with sapphires and with bezel set full cut round diamond melee (

THREE GEM-SET RINGS, CIRCA 1890 1st: Set with a row of graduated cushion-shaped diamonds, 2nd: The cushion-shaped sapphire within a similarly-shaped diamond surround, 3rd: Of crossover design, set wit

AN ART DECO DIAMOND AND SAPPHIRE DRESS RING, three old-cut diamonds in milgrain settings within a pierced hexagonal border of calibré-cut sapphires and round-cut diamonds. Estimated total diamond wei

A DIAMOND AND SAPPHIRE DRESS RING the pierced face set with a principal old cut diamond, accented by calibre cut blue sapphires and single cut diamonds, no assay marks, size M / 6.25, 5.1g.