An 18ct gold brilliant-cut diamond 'Quatre Black Edition' ring, by Boucheron.Total diamond weight

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

An 18ct gold emerald and brilliant-cut diamond floral cluster ring, diamond estimated weight 0.25ct, H-I colour, SI clarity, hallmarks for London 1977, ring size L, 4g

An 18ct gold ametrine and brilliant-cut diamond cluster ring. Ametrine weight 20.49cts. Total diamond weight 0.56ct. Hallmarks for Birmingham. Ring size N1/2. 11.3gms.

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

Two 18ct gold diamond dress rings. To include a square-shape diamond panel ring with baguette-cut diamond shoulders, together with a brilliant-cut diamond line crossover ring. Total diamond weight 0.5

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.

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

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

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 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

BULGARI - an 18ct gold 'B.Zero1' diamond ring. The brilliant-cut diamond line, with logo sides. Signed Bulgari. Estimated total diamond weight 0.70ct. Convention marks for Switzerland. Ring size O 1/2

An 18ct gold diamond cluster ring. The brilliant-cut diamond, within a similarly-cut diamond lozenge-shape surround, to plain band. Estimated total diamond weight 1.30cts, H-J colour, SI clarity. Hall

A gentleman's 18ct gold diamond band ring. The brilliant-cut diamond, inset to the plain band with grooved edges. Diamond weight 0.40ct, stamped to band, estimated H-I colour, P1 clarity. Hallmarks fo

An 18ct gold diamond cluster ring. The brilliant-cut diamond cluster, with a similarly-cut diamond scalloped surround and brilliant-cut diamond double line shoulders. Estimated total diamond weight 0.

An 18ct gold diamond cluster ring. The brilliant-cut diamond, within a similarly-cut diamond double surround, to the plain band. Estimated total diamond weight 0.45ct. Hallmarks for Sheffield. Ring si

An 18ct gold diamond cluster ring. The brilliant-cut diamond floral cluster, with tapered band. Diamond weight 0.47ct, stamped to band. Hallmarks for London, 1978. Ring size J. Weight 3.2gms.

An 18ct gold diamond band ring. The brilliant-cut diamond highlight, to the plain band. Estimated diamond weight 0.10ct. Hallmarks for London. Ring size T. Weight 12gms.

An 18ct gold diamond crossover ring. The brilliant-cut diamond, with similarly-cut diamond asymmetric shoulders and plain band. Estimated total diamond weight 0.40ct, I-J colour, SI clarity. Hallmarks

An 18ct gold diamond cluster ring. The brilliant-cut diamond, within a brilliant-cut diamond surround. Estimated total diamond weight 0.50ct. Import marks for London. Ring size P. Weight 3.1gms.