A tanzanite and diamond dress ring. The

A TANZANITE AND DIAMOND DRESS RING in 18ct yellow gold, the tapering band set with a cushion cut tanzanite of 1.09 carats, between shoulders set with round cut diamonds, stamped 18K, size P / 7.5, 4.6

A tanzanite and diamond dress ring. The oval-shape tanzanite, within a brilliant-cut diamond floral openwork surround, to the plain band. Estimated total diamond weight 0.20ct. Ring size N. Weight 3.9

A 14ct gold tanzanite and diamond dress ring. The oval-shape tanzanite, with brilliant-cut diamond double sides and tapered baguette-cut diamond shoulders. Tanzanite weight 1ct. Total diamond weight 0

A 9ct gold tanzanite and diamond dress ring. Of marquise-shape outline, the circular-shape tanzanite cluster, within a single-cut diamond surround, to the plain band. Hallmarks for Birmingham. Ring si

A 9ct gold tanzanite and diamond dress ring. The oval-shape tanzanite line, with single-cut diamond line sides. Hallmarks for Birmingham. Ring size L. Weight 2.8gms.

A 9ct gold tanzanite and diamond dress ring. Designed as a series of three oval-shape tanzanite's, with single-cut diamond asymmetric shoulders and plain band. Hallmarks for Birmingham. Ring size M. W

Four 9ct gold gem-set rings. To include an opal and diamond cluster ring, a tanzanite and diamond dress ring, together with two further rings. One AF. Estimated total diamond weight 0.35ct. Hallmarks

A TANZANITE, PINK TOURMALINE AND DIAMOND DRESS RING set with a cushion shaped tanzanite of 11.28 carats, accented by marquise cut pink tourmalines and round brilliant cut diamonds, no assay marks, siz

A tanzanite, opal doublet and diamond dress ring. Of geometric design, the pear-shape tanzanite, with square-shape diamond lines and opal doublet shoulders. Estimated total diamond weight 0.40ct. Ring

A tanzanite, baguette and brilliant-cut diamond geometric dress ring,Tanzanite calculated weight 2.31cts, based on estimated dimensions of 8.8 by 7.1 by 4.1mms.Estimated total diamond weight 0.35ct.St

Six 9ct gold diamond and gem-set rings. To include an aquamarine and diamond dress ring, a tanzanite and diamond cluster ring, together with four further rings. Estimated total diamond weight 0.35ct.

Three 9ct gold gem-set rings. To include a sapphire and emerald geometric dress ring, a tanzanite and diamond cluster ring, together with a garnet and diamond cluster ring. Hallmarks for 9ct gold. Est

A selection of three 9ct gold gem-set rings. To include an opal and amethyst three-stone ring, a coated topaz and diamond dress ring, together with a tanzanite floral cluster ring. Hallmarks for 9ct g

A 9ct sapphire and diamond dress ring. The oval-shape tanzanite line, with single-cut diamond line sides. Hallmarks for Birmingham, 2006. Ring size P. Weight 2.4gms. Overall condition good. Minor surf

Four gem-set dress rings. To include a 9ct gold tanzanite and diamond ring, a 9ct gold sapphire and diamond ring, a 9ct gold vari-gem cluster ring, with one further gem-set ring. Three with hallmarks

Three 9ct gold gem-set and diamond rings. To include an orange sapphire and diamond floral ring, a peridot and diamond single-stone ring, together with a tanzanite three-row dress ring. Hallmarks for

J.ROCA: DIAMOND DRESS RING The brilliant-cut diamond, weighing 10.80 carats, the mount of foliate design, set with single-cut diamonds, the bifurcated shoulders set with single-cut diamonds, signed J.

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

J.ROCA: DIAMOND DRESS RING The brilliant-cut diamond, weighing 6.66 carats, the mount set with calibré-cut emeralds, single and rose-cut diamonds, the similarly-set trifurcated shoulders and gall

A FINE 'TOI ET MOI' DIAMOND DRESS RING Each brilliant-cut diamond weighing 1.69ct and 1.81ct within an eight-claw setting to a plain hoop, mounted in 18K gold, with maker's mark, French assay mark, ri

DIAMOND DRESS RING The brilliant-cut diamond of yellow tint, within a bombé surround pavé-set with brilliant-cut diamonds, diamond untested for origin and natural colour, principal diamond a

A SAPPHIRE AND DIAMOND DRESS RING The central cushion-shaped sapphire weighing 5.59cts within a four-claw setting and between half-moon-shaped diamond shoulders, mounted in 18K gold, diamonds approxim

GRIMA: BOULDER OPAL AND DIAMOND DRESS RING, 1977 The oval boulder opal in a pierced mount of textured wire with brilliant-cut diamond accents, mounted in 18 carat gold, signed Grima, workshop mark HJC

GUBELIN, A DIAMOND DRESS RING in 18ct gold, set to the centre with a round brilliant cut diamond of approximaetly 3.00 carats, the tapering band further set with round brilliant cut diamonds, Gubelin