An 18ct gold brilliant-cut diamond necklace.Estimated

An 18ct gold brilliant-cut diamond and black ceramic 'Ultra' ring, by Chanel.Estimated total diamond weight 0.15ct.Hallmarks for London, 2006. Ring size (at leading edge) L1/2. 16.1gms.

An 18ct gold brilliant-cut diamond highlight bead-link necklace, by Jennifer Meyer.Estimated diamond weight 0.40ct, G-H colour, SI clarity.Hallmarks for London. Length 36.7cms. 14.8gms.

An 18ct gold brilliant-cut diamond 'Trinity' bracelet, on adjustable brown cord, by Cartier.Total diamond weight 0.17ct, estimated G-H colour, VS clarity.Swiss convention marks. Maximum length 21.5cms

A pair of 18ct gold brilliant-cut diamond cluster line and citrine drop earrings.Estimated total diamond weight 0.75ct.Hallmarks for London, 2015. Length 4.7cms. 12.4gms.

An 18ct gold brilliant-cut diamond and black ceramic 'Ultra' ring, by Chanel.Estimated total diamond weight 0.40ct, G-H colour, VS clarity.Swiss convention marks. Ring size K1/2. 10gms.With maker's ca

An 18ct gold brilliant-cut diamond and peridot pendant.Estimated total diamond weight 0.15ct, H-I colour, VS1-SI1 clarity.Hallmarks for London.Length 5.2cms. 4.9gms.

An 18ct gold brilliant-cut diamond single-stone ring. Estimated diamond weight 0.25ct, H-I colour, P1 clarity. Hallmarks for London. Ring size K1/2. 2.6gms.

(131011-1-A) Two rings and a sovereign pendant, with chain. To include an 18ct gold brilliant-cut diamond band ring, a diamond dress ring, together with a sovereign pendant, dated 1909 within a 9ct go

Two diamond rings. To include an 18ct gold brilliant-cut diamond three-stone ring, together with a brilliant-cut diamond line band ring. Estimated total diamond weight 0.75ct. Principal diamonds estim

Two diamond rings. To include an 18ct gold brilliant-cut diamond five-stone ring, together with an old-cut diamond three-stone ring. Estimated total diamond weight 0.60ct, principal diamond estimated

(1920) Two gold diamond rings. To include an 18ct gold brilliant-cut diamond single-stone ring, with similarly-cut graduated line sides and a 9ct gold diamond crossover band ring. Total diamond weight

Two gem-set rings. To include an 18ct gold brilliant-cut diamond single-stone ring, together with a circular-shape colourless gem abstract ring. One with hallmarks for Sheffield. Total weight 6gm.

Two diamond rings. To include an 18ct gold brilliant-cut diamond single-stone ring, together with a single-cut diamond full eternity ring. AF. Estimated total diamond weight 0.40ct. One with hallmarks

An 18ct gold amethyst and brilliant-cut diamond dress ring.Amethyst weight 5.31cts. Total diamond weight 0.35ct, estimated H-I colour, VS-SI clarity. Hallmarks for Birmingham. Ring size O. 6.6gms.We o

An 18ct gold sapphire and brilliant-cut diamond three-stone ring, sapphire estimated weight 2ct, estimated total diamond weight 0.40ct, estimated L-tinted colour, VS2-SI1 clarity, hallmarks for Birmin

A mid 20th century 18ct gold amethyst and brilliant-cut diamond cluster ring.Estimated total diamond weight 0.50ct, G-H colour, VS-SI clarity.Stamped 18ct. Ring size J. 3.8gms.

A diamond cluster pendant, with 18ct gold chain. The brilliant-cut diamond, with similarly-cut diamond surround, to the bifurcated surmount and flat curb-link chain. Clasp AF. Total diamond weight 0.3

A pair of 18ct gold 'Chiocciola' sapphire and brilliant-cut diamond earrings, by de Grisogono. Estimated total diamond weight 0.80ct. With Swiss convention marks. Diameter 2.2cms. 20.7gms.

An 18ct gold diamond pendant. The brilliant-cut diamond fringe, suspended from a similarly-cut diamond geometric surmount, to the 18ct gold belcher-link chain. Estimated total diamond weight 1.40cts.

An 18ct gold diamond ring. The brilliant-cut diamond, inset to the tapered band. Estimated diamond weight 0.35ct, I-J colour, P1 clarity. Hallmarks for London, 1972. Ring size P1/2. Weight 10.8gms.

An 18ct gold diamond ring. The brilliant-cut diamond, with similarly-cut diamond trefoil sides. Total diamond weight 0.50ct, stamped to band, principal diamond estimated I-J colour, P2 clarity. Hallma

A diamond solitaire ring in 18ct white gold, featuring a brilliant-cut diamond of 0.50ct in claw setting, with tapered shoulders to flat shank, Sheffield hallmarked '750' with maker's mark 'WJJ', size

An 18ct gold diamond pendant. The brilliant-cut diamond collet, with similar-cut diamond surround and plain surmount, suspended from an 18ct gold belcher-link chain. Estimated total diamond weight 0.2

MAPPIN & WEBB - an 18ct gold diamond necklace. The brilliant-cut diamond lariat motif drop, with integral trace-link double chain. Maker's marks for Mappin & Webb. Estimated total diamond weight 0.70c