Sapphire and diamond cluster ring in 18ct gold Single

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct gold, set with an oval sapphire in a cluster of single cut diamonds, British hallmarks for 18ct gold, size M / 6, 4.6g.

A COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a central cushion cut sapphire of 5.13 carats, encircled by a border of single cut diamonds, later British import marks,

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

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

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 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 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within an alternating single-cut diamond and circular-shape sapphire triple surround. Estimated total diamond weight 0.70ct. Ha

An 18ct gold sapphire and diamond cluster ring. Of floral design, the oval-shape sapphire, within a single-cut diamond and textured petal surround. Estimated total diamond weight 0.30ct. Hallmarks for

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.

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 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.

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 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 London, 1979. Wei

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

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

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.

Two mid 20th century 18ct gold diamond and gem-set rings. To include a circular-shape sapphire and single-cut diamond cluster ring, together with a graduated rose-cut diamond three-stone crossover rin

Two mid 20th century 18ct gold diamond and sapphire cluster rings. The first designed as an oval-shape sapphire within a single-cut diamond surround, the second designed as a single-cut diamond floral

Two early to mid 20th century 18ct gold diamond and sapphire floral cluster rings. The first designed as a single-cut diamond scalloped cluster with textured sides, the second designed as a circular-s

An 18ct gold sapphire and diamond cluster ring, An 18ct gold sapphire and diamond cluster ring, an oval mixed cut sapphire, approximately 5.40mm x 8.00mm, claw set to the centre of a surround of round

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 4.11 carats in a cluster of round brilliant cut diamonds all totalling 1.4-1.6 carats, stamped 18