A diamond dress ring. The brilliant-cut diamond collet

A sapphire and diamond dress ring. The brilliant-cut diamond collet, within a similarly-cut diamond and calibre-cut sapphire panel, to the plain band. Principal diamond estimated weight 0.90ct, J-K co

A diamond dress ring. The brilliant-cut diamond collet, within a single-cut diamond panel, to the plain band. Estimated total diamond weight 0.50ct. Weight 3.7gms.

CHOPARD - a 'Happy Diamonds' dress ring. The free-moving brilliant-cut diamond collet, within a similarly-cut diamond heart, glazed panel. Signed and numbered Chopard, 9885359, 82/2936-20. Estimated t

CHOPARD - A 'Happy Diamonds' dress ring. The free-moving brilliant-cut diamond collet, within a spiral surround, to the plain band. Signed and numbered Chopard, 6145083/827109-5002. Convention marks f

A sapphire and diamond dress ring. Designed as a series of vari-shape sapphire and brilliant-cut diamond collets, raised to the tapered band. Ring size S. Weight 9.2gms. Overall condition fair. Surfac

An emerald and diamond dress ring. The square-shape emerald collet, with brilliant-cut diamond sides. Ring size L. Weight 5.3gms.

An 18ct gold ruby and diamond dress ring. The oval and circular-shape ruby collets, with brilliant-cut diamond double intervals, to the tapered band. Estimated total diamond weight 0.10ct. Hallmarks f

A SAPPHIRE AND DIAMOND DRESS RING The elongated openwork plaque, centred by a collet-set old brilliant-cut diamond, accented by similarly-cut diamonds and marquise-shaped sapphires, to a polished hoop

A DIAMOND AND PEARL DRESS RING Composed of a circular pearl within collet-setting and surround of old brilliant and cushion-cut diamonds, to a plain thick hoop, mounted in silver and gold, diamonds ap

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)

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.

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

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 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

A diamond dress ring. The brilliant-cut diamond, within a single-cut diamond asymmetric surround. Principal diamond estimated weight 0.60ct, J-K colour, SI clarity. Ring size M1/2. Weight 5.1gms. Over

A diamond dress ring. The brilliant-cut diamond, with vari-cut diamond accent and engraved foliate shoulders. Estimated total diamond weight 0.55ct, principal diamond estimated H-I colour, VS clarity.

A cultured and seed pearl and diamond dress ring. The brilliant-cut diamond lattice, with cultured and seed pearl spacers, to the tapered half-band. Estimated total diamond weight 1.25cts. Ring size M

A mid 20th century platinum diamond dress ring. The brilliant-cut diamond, with similarly-cut diamond tapered cylindrical sides. Estimated total diamond weight 1.50cts, principal diamond estimated I-J

CHOPARD - a 'Happy Diamonds' ring. The brilliant-cut diamond collet, free-moving within a square-shape glazed panel surround. Signed and numbered Chopard, 289012 0, 82/2938-20. Ring size M. Weight 12g

MIKIMOTO - a cultured pearl and diamond dress ring. The brilliant-cut diamond trefoil, with vari-size cultured pearl surround. Signed Mikimoto. Ring size J. Weight 1.8gms. Overall condition good. Mino

A ruby and diamond dress ring. The brilliant-cut diamond and circular-shape ruby line, to the baguette-cut diamond graduated line sides, all within a circular-shape ruby surround. Estimated total diam

An 18ct gold diamond dress ring. The brilliant-cut diamond, within a similarly-cut diamond scrolling surround. Estimated total diamond weight 0.30ct, principal diamond estimated I-J colour, SI2 clarit

An early 20th century gold diamond dress ring. The brilliant-cut diamond, with openwork knot surround and tapered shoulders. Ring size O. Weight 3.5gms.

A ruby and diamond dress ring. The old-cut diamond collet, within a single-cut diamond and calibre-cut ruby geometric panel, to the single-cut diamond line sides. Estimated total diamond weight 0.60ct