An 18ct gold diamond single-stone ring.Estimated diamond weight 1ct, H-I colour, P1 clarity.

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 diamond single-stone ring. The brilliant-cut diamond, to the tapered sides and plain band. Estimated diamond weight 1ct, tinted colour, SI2-P1 clarity. Hallmarks for Sheffield. Weight 3.6

An 18ct gold diamond single-stone ring. The square-shape diamond, with tapered shoulders and plain band. Estimated diamond weight 0.50ct, H-I colour, P1 clarity. Import marks for London, 1997. Ring si

An 18ct gold diamond single-stone ring. The old-cut diamond, inset to the tapered band. Estimated diamond weight 0.50ct, H-I colour, SI2-P1 clarity. Hallmarks for London, 1999. Ring size Q. Weight 7.8

An 18ct gold diamond single-stone ring. The square-shape diamond, between brilliant-cut diamond tapered line sides. Principal diamond estimated weight 0.20ct, H-I colour, SI2-P1 clarity. Hallmarks for

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, with square-shape surround and tapered shoulders. Estimated diamond weight 0.25ct, H-I colour, SI2-P1 clarity. Hallmarks for Birmingh

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered shoulders and plain band. Diamond weight 0.33ct, stamped to band, estimated, H-I colour, SI2-P1 clarity. Hallmarks for

An early 20th century 9ct gold old-cut diamond single-stone ring.Estimated diamond weight 0.35ct, H-I colour, SI clarity.Ring size K1/2. 1.6gms.

An early to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.Estimated total diamond weight 1.20cts, H-I colour, SI1-P1 clarity.Ring size O1/2. 3.3gms.

An 18ct gold diamond single-stone ring. The oval old-cut diamond, with tapered band. Estimated diamond weight 1ct, tinted colour, SI clarity. Hallmarks for Birmingham, 1991. Ring size N. Weight 2.6gms

An 18ct gold rectangular-shape diamond single-stone ring.Diamond weight 5.76cts, estimated tinted 'light yellowish brown' colour, SI2-P1 clarity.Hallmarks for London, 2011. Ring size M. 5.1gms.

A mid Victorian 18ct gold old-cut diamond single-stone ring.Diamond estimated weight 0.90ct, based on estimated dimensions of 8.9 by 7.7 by 2.1mms, estimated I-J colour, P1 clarity.Hallmarks for Birmi

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, with tapered band. Diamond weight 2cts, tinted colour, P1-P2 clarity. Hallmarks for Sheffield. Ring size N1/2. Weight 3.7gms.

An 18ct gold diamond five-stone ring. Designed as a graduated old-cut diamond line, with tapered shoulders. Estimated total diamond weight 1ct, H-J colour, SI clarity. Hallmarks for London, 1974. Ring

An 18ct gold diamond single-stone pendant. The brilliant-cut diamond, suspended from a fine curb-link chain. Estimated diamond weight 1ct, J-K colour, P2-P3 clarity. Hallmarks for London. Length of pe

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered shoulders and plain band. Estimated diamond weight 0.65ct, K-L colour, P1 clarity. Hallmarks for Birmingham. Weight 3g

An 18ct gold diamond single-stone ring. The rectangular-shape diamond, with tapered shoulders. Estimated diamond weight 0.50ct, H-I colour, VS clarity. Hallmarks for Sheffield. Ring size J1/2. Weight

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered shoulders and plain band. Estimated diamond weight 0.50ct, H-I colour, SI clarity. Hallmarks for Birmingham. Weight 3.

A mid 20th century 18ct gold diamond single-stone ring. The brilliant-cut diamond, with rose-cut diamond sides. Estimated brilliant-cut diamond weight 0.50ct, I-J colour, P1 clarity. Ring size R. Weig

An early 20th century 18ct gold diamond single-stone ring. The old-cut diamond, with scalloped mount and tapered shoulders. Estimated diamond weight 0.50ct, L-tinted colour, P1 clarity. Hallmarks for

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, with tapered band. Estimated diamond weight 0.35ct, G-H colour, VS clarity. Hallmarks for Birmingham, 1987. Ring size N1/2. Weight 2.

An 18ct gold diamond single-stone ring. The marquise-shape diamond, with crossover shoulders. Estimated diamond weight 0.35ct, H-I colour, SI clarity. Hallmarks for Birmingham. Ring size G 1/2. Weight

An 18ct gold diamond single-stone ring. The brilliant-cut diamond, to the tapered shoulders and plain band. Estimated diamond weight 0.25ct, I-J colour, P1 clarity. Hallmarks for London. Weight 2.7gms

A mid 20th century platinum and 18ct gold diamond single-stone ring. The circular-cut diamond, with pave-set diamond line sides. Principal diamond estimated weight 0.30ct, I-J colour, P1 clarity. Ring