An 18ct gold diamond cluster ring and an opal single-st

An 18ct gold opal and diamond cluster ring. The oval opal cabochon, within a single-cut diamond surround, to the tapered band. Estimated total diamond weight 0.35ct. Hallmarks for London, 1978. Ring s

A mid 20th century 18ct gold and platinum, opal and diamond cluster ring. The opal cabochon, within a single-cut diamond surround. Estimated total diamond weight 0.10ct. Ring size O. Weight 2.6gms. Ov

Two 18ct gold diamond and gem-set rings. To include an oval opal cabochon single-stone ring with brilliant-cut diamond stepped sides, together with a ruby and diamond cluster ring. Estimated total dia

A mid 20th century platinum and 18ct gold diamond cluster ring. The single-cut diamond floral cluster, with single-cut diamond sides, to the plain band. Estimated total diamond weight 0.15ct. Weight 2

An 18ct gold diamond cluster ring. The single-cut diamond, within a similarly-cut diamond stepped surround. Total diamond weight 0.15ct, stamped to band. Hallmarks for Sheffield. Ring size K. Weight 2

An 18ct gold sapphire and diamond cluster ring. The single-cut diamond, within a circular-shape sapphire quatrefoil, to the single-cut diamond scalloped surround. Estimated total diamond weight 0.40ct

An 18ct gold ruby and diamond cluster ring. The single-cut diamond, within a circular-shape ruby and single-cut diamond stepped surround. Estimated total diamond weight 0.10ct. Hallmarks for London, 1

Eight gold gem-set rings. To include an 18ct gold diamond cluster ring, a 9ct gold citrine single-stone ring, together with five further 9ct gold gem-set rings and one 9ct gold ring mount. One AF. Est

An 18ct gold sapphire and diamond cluster ring. The sapphire and single-cut diamond floral cluster, to the plain band. Estimated total diamond weight 0.15ct. Hallmarks for Birmingham. Ring size N 1/2.

18ct gold hallmarked black opal & diamond cluster ring: Outstanding ring supplied by Boodles, ring size T, 24 small but high grade diamonds. Opal measures 16mm x 11mm.

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, within a single-cut diamond scalloped surround. Estimated total diamond weight 0.40ct, principal diamond estimated I-J colour, S

An early 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire and single-cut diamond surround, with scrolling engraved shoulders. Estimated total diamond weight 0.15ct. Ha

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, with single-cut diamond surround. Estimated total diamond weight 0.10ct. Hallmarks for 18ct gold, partially indistinct. Ring si

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

An 18ct gold sapphire and diamond cluster ring. The circular-shape sapphire, with single-cut diamond surround. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham, 1997. Ring size M. Weigh

An 18ct gold ruby and diamond cluster ring. The oval-shape ruby, with single-cut diamond surround. Total diamond weight 0.10ct, stamped to band. Hallmarks for Sheffield, 1992. Ring size L. Weight 3.4g

An early 20th century 18ct gold opal and diamond ring. The oval opal cabochon, to the single-cut diamond and circular opal cabochon sides. Weight 3.2gms.

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weight 0.30ct. Hallmarks

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the plain band. Estimated total diamond weight 0.45ct. Hallmarks for London, 1976. Rin

An early 20th century 18ct gold zircon and diamond cluster ring. The circular-shape zircon, within a single-cut diamond surround, with tapered shoulders. Estimated total diamond weight 0.15ct. Ring si

An 18ct gold ruby and diamond cluster ring. The circular-shape ruby quatrefoil, with single-cut diamond surround. Estimated total diamond weight 0.20ct. Hallmarks for London, 1988. Ring size L1/2. Wei

An 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond and polished spacer surround. Hallmarks for London, 1978. Ring size L. Weight 5.2gms.

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