A sapphire and single-cut diamond cluster ring. Sapphire calculated weight 2.82cts, based on

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

A yellow sapphire and old-cut diamond cluster ring. Sapphire calculated weight 20.06cts, based on estimated dimension of 17.35 by 13.5 by 10.2mms.Estimated total diamond weight 1.50cts, G-H colour, pr

A sapphire and brilliant-cut diamond cluster ring.Sapphire calculated weight 1.58cts, based on estimated dimensions of 7.8 by 5.9 by 4.1mms.Estimated total diamond weight 0.50ct, H-J colour, SI1-P1 cl

An early 20th century platinum and 9ct gold blue zircon and single-cut diamond cluster ring.Zircon calculated weight 1.96cts, based on estimated dimensions of 6.85 by 4.5mms.Estimated total diamond we

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.

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

A sapphire and diamond cluster ring. The circular-shape sapphire and single-cut diamond cluster, to the sapphire rope-twist surround and four-row band. Estimated total diamond weight 0.20ct. Weight 4.

A gold sapphire and diamond cluster ring. The oval-shape sapphire, with single-cut diamond surround and bar spacers. Estimated total diamond weight 0.10ct. Ring size N. Weight 5gms.

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

A sapphire and diamond cluster ring. The oval-shape sapphire collet, with single-cut diamond surround and similarly-cut diamond accent shoulders. Estimated total diamond weight 0.40ct. Ring size L1/2.

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

A sapphire and diamond cluster ring. The oval-shape sapphire, with a single-cut diamond openwork surround, similarly-cut diamond border and shoulders. Estimated total diamond weight 0.30ct. Ring size

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 sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the plain band. Estimated total diamond weight 0.10ct. Ring size L1/2. Weight 3.3gms.

A sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the tapered band. Estimated total diamond weight 0.10ct. Ring size K. Weight 4.6gms.

A platinum and 18ct gold sapphire and diamond cluster ring. The oval-shape greenish blue sapphire, with single-cut diamond surround and tapered sides. Estimated total diamond weight 0.20ct. Hallmarks

Five 9ct gold gem-set rings. To include an oval-shape sapphire, and diamond cluster ring, a single-cut diamond cluster ring, together with three further rings. Hallmarks for 9ct gold. Weight 10.9gms,

A sapphire and diamond cluster ring. The rectangular-shape sapphire, with alternating single-cut diamond and faceted foliate panel surround. Ring size I. Weight 2.5gms.

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 0.15ct. Hallmarks for Birmingham, 1974.

A mid 20th century 18ct gold sapphire and diamond cluster ring. The circular-shape sapphire, within a single-cut diamond border. Estimated total diamond weight 0.10ct. Weight 4.2gms.

A 9ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a single-cut diamond surround, to the tapered band. Estimated total diamond weight 0.10ct. Hallmarks for Birmingham,1990.