An 18ct gold graduated brilliant-cut diamond line necklace, with bead-link back-chain.Estimated

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.

A diamond necklace. The graduated brilliant-cut diamond cluster line, with disc-link back-chain. Estimated total diamond weight 4cts, I-J colour, P2 clarity. Length 46cms. Weight 28.6gms.

An 18ct gold sapphire and diamond necklace. The oval-shape sapphire and brilliant-cut diamond cluster, with baguette and brilliant-cut diamond swag sides, suspended from a curb-link back-chain. Estima

An 18ct gold emerald and diamond necklace. The pear-shape emerald collet, suspended from a brilliant-cut diamond foliate chevron, to the integral fancy-link back-chain. Estimated total diamond weight

An enamel and diamond necklace, by Leo de Vroomen each curving link with blue guilloche enamel and graduated round brilliant-cut diamond detail, modelled in 18ct gold, signed de Vroomen(Length: 40cm (

An 18ct gold diamond single-stone necklace. The brilliant-cut diamond collet and crossover bar, to the belcher-link chain with tubular and sphere beads. Hallmarks for Edinburgh. Length 45cms. Weight 1

An 18ct gold ruby and diamond necklace, set to the front with a graduated trio of flower motifs set throughout with round brilliant cut diamonds and similar rubies to a fine belcher link backchain; Lo

An 18ct gold diamond ring. The slightly graduated brilliant-cut diamond line, to the similarly-cut diamond line shoulders and gallery. Estimated total diamond weight 0.50ct. Hallmarks for London. Ring

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, with plain band. Total diamond weight 1.27cts, stamped to band, estimated H-I colour, SI clarity. Hallmarks for Birming

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, with similarly-cut diamond line shoulders. Estimated total diamond weight 0.80ct, principal diamonds estimated H-I colo

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, with grooved shoulders. Estimated total diamond weight 0.45ct, principal diamond estimated H-I colour, P1 clarity. Hall

An 18ct gold diamond pendant. The graduated illusion-set brilliant-cut diamond line, within a similarly-cut diamond scalloped and pierced surround, suspended from a brilliant-cut diamond openwork surm

An 18ct gold diamond ring. Designed as a graduated brilliant-cut diamond line, with tapered half-band. Estimated total diamond weight 0.15ct. Hallmarks for Birmingham. Ring size M 1/2. Weight 3.1gms.

A mid 20th century platinum and 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, to the single-cut diamond asymmetric sides and plain band. Estimated total diamond weight

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, with tapered shoulders. Total diamond weight 0.33ct, stamped to band. Hallmarks for Birmingham. Ring size O. Weight 3gm

An 18ct gold diamond two-row ring. The graduated brilliant-cut diamond lines, with plain band. Total diamond weight 0.50ct, stamped to band. Hallmarks for London. Ring size M 1/2. Weight 4gms. Overall

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond collet line, with tapered shoulders. Total diamond weight 0.54ct, stamped to band, estimated H-I colour, VS2-SI1 clarity. Hal

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond diagonal line, with curved shoulders. Total diamond weight 0.33ct, stamped to band. Hallmarks for Birmingham, 1992. Ring size

A diamond five-stone ring. The graduated brilliant-cut diamond line, with 18ct gold half-band replacement. Estimated total diamond weight 0.60ct, H-I colour, P1-P2 clarity. Band replacement with hallm

An 18ct gold and platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with bi-colour gallery and band. Estimated total diamond weight 0.30ct. Ring size K. Weight 1.6gms.

An 18ct gold half eternity ring, An 18ct gold seven stone diamond ring, with seven graduated round brilliant cut diamonds bead set to tapered shoulders and a plain shank. Combined diamond weight estim

An 18ct gold emerald and diamond ring. The oval-shape emerald, with graduated brilliant-cut diamond line sides and tapered band. Estimated total diamond weight 0.20ct. Import marks for Sheffield. Weig

An 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond, illusion-set line, with tapered shoulders. Estimated total diamond weight 0.30ct. Hallmarks for London, 1981. Ring size I. W

MARCO BICEGO: 'SIVIGLIA' DIAMOND-SET BRACELET Designed as three rows of textured and pavé-set brilliant-cut diamond beads, with trace link train connectors, mounted in 18ct gold, signed Marco Bic