A 1970s 18ct gold diamond and aquamarine cluster ring.

An 18ct gold diamond and aquamarine cluster ring. The oval-shape aquamarine, with brilliant-cut diamond surround and openwork shoulders. Estimated total diamond weight 0.10ct. Hallmarks for London, 19

An 18ct gold diamond and aquamarine cluster ring. The oval-shape aquamarine, within a brilliant-cut diamond surround. Estimated total diamond weight 0.35ct. Hallmarks for London, 1978. Ring size O. We

A 1970s 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, with single-cut diamond surround and baguette-cut diamond sides. Estimated total diamond weight 0.30ct. Hallmarks for Lond

A 1970s 18ct gold ruby and diamond cluster ring. The brilliant-cut diamond, with circular-shape ruby surround. Hallmarks for Birmingham, 1972. Ring size I. Weight 2gms.

A 1970s 18ct gold sapphire and single-cut diamond cluster ring. Sapphire calculated weight 0.95ct, based on estimated dimensions of 7.2 by 5.2 by 3mms.Estimated total diamond weight 0.35ct.Hallmarks f

Two diamond and gem-set cluster rings. To include a mid 20th century 18ct gold sapphire, diamond and colourless paste cluster ring, together with a 9ct gold aquamarine and diamond cluster ring. Estima

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut aquamarine of 4.68 carats in a border of old cut diamonds, the diamonds all totalling 1.7-1.9 carats, stamped 18ct, siz

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut aquamarine of 2.00 carats, in a cluster of round brilliant cut diamonds, British hallmarks, size M / 6, 5.7g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an emerald cut aquamarine of 3.71 carats in a border of round cut diamonds totalling all 0.11 carats, stamped Au750, size O / 7, 4.0

An 18ct gold 1970's synthetic ruby and diamond cluster ring. The old-cut diamond, within a circular-shape synthetic ruby scalloped surround, and rose-cut diamond highlights. Hallmarks for Birmingham,

An 18ct gold aquamarine and diamond ring. Designed as two circular-shape aquamarine and brilliant-cut diamond crossover clusters, with similarly-cut diamond line shoulders. Estimated total diamond wei

An 18ct gold diamond cluster ring. Of floral design, the brilliant-cut diamond cluster, to the tapered shoulders. Estimated total diamond weight 3cts, I-J colour, SI2-P2 clarity. Hallmarks for London,

A mid 20th century 18ct gold diamond cluster ring. The old-cut diamond, within a single-cut diamond surround, to the plain band. Principal diamond estimated weight 0.75ct, tinted colour, SI clarity. R

A mid 20th century 18ct gold diamond cluster ring. The old-cut diamond cluster, to the tapered shoulders and plain band. Estimated total diamond weight 1ct. Principal diamond estimated I-J colour, SI

An 18ct gold diamond cluster ring. Designed as two brilliant-cut diamonds, with similarly-cut diamond shared surrounds. Estimated total diamond weight 1.25cts, principal diamonds estimated H-I colour,

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.

A mid 20th century 18ct gold diamond cluster ring. The old-cut diamond, within a single-cut diamond scalloped surround. Estimated total diamond weight 0.40ct, principal diamond estimated I-J colour, S

An 18ct gold diamond cluster ring. The brilliant and tapered baguette-cut diamond panel, with brilliant-cut diamond sides. Estimated total diamond weight 1ct. Hallmarks for Sheffield. Ring size O1/2.

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 cluster ring. Of marquise outline, the brilliant-cut diamonds, with tapered baguette and brilliant-cut diamond double surround, to the brilliant-cut diamond shoulders. Total diamo

An early 20th century 18ct gold diamond cluster ring. The old-cut diamond collet, within a similarly-cut diamond and curved bar halo, to the old-cut diamond sides. Estimated total diamond weight 0.50c

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.

An 18ct gold diamond cluster ring. Of square outline, the brilliant-cut diamond cluster, with tapered shoulders. Estimated total diamond weight 0.30ct. Hallmarks for Sheffield. Ring size N. Weight 3gm