A mid 20th century sapphire and diamond cluster ring.

A mid 20th century sapphire and diamond cluster ring. The rectangular-shape sapphire, within an old-cut diamond surround, to the grooved shoulders and plain band. Estimated total diamond weight 0.35ct

A mid 20th century platinum, sapphire and diamond cluster ring. The rectangular-shape sapphire, within a circular-cut diamond scalloped surround, to the openwork gallery. Estimated total diamond weigh

A MID 20TH CENTURY SAPPHIRE AND DIAMOND OVAL CLUSTER PANEL RINGThe oval cut sapphire within a surround of old European cut diamonds, approximately 0.48 carats total, to a pierced geometric gallerySize

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within an old-cut diamond border, to the trifurcated shoulders and plain band. Estimated total diamond weight 1

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a brilliant-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weigh

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within an old-cut diamond, illusion-set surround. Estimated total diamond weight 0.30ct. Weight 5.7gms.

A mid 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire, within a brilliant-cut diamond surround, to the tapered shoulders and plain band. Estimated total diamond weigh

A mid 20th century 18ct gold sapphire and diamond cluster ring. The circular-shape sapphire collet and old-cut diamond cluster with tapered band. Estimated total diamond weight 0.25ct. Ring size K1/2.

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 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

A 9ct gold sapphire and diamond cluster ring, together with a mid 20th century silver and 9ct gold paste ring. The first set with an oval-shape pink sapphire within single-cut diamond border, the seco

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

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

An early to mid 20th century yellow metal, diamond, and pink sapphire ring, set with a mixed marquise-cut sapphire within a border of round-cut diamonds, ring cluster approximately 11 x 8 mm, indistin

A vintage 18k gold gemstone cluster ring comprising five connected yet individual rings set with combinations of rose cut diamonds, sapphires, rubies and emeralds. Circa the mid late 20th century. Wei

A mid 20th century platinum diamond cluster ring. The old-cut diamond cluster, with pierced gallery and plain band. Estimated total diamond weight 1ct, I-J colour, SI clarity. French assay marks. Ring

AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND CLUSTER RING an oval-cut sapphire within a fancy pierced milgrain border of round-cut diamonds, to diamond-set shoulders. Estimated total diamond weight 0.30

An early 20th century sapphire and diamond cluster ring, the central rectangular facetted sapphire surrounded by twelve pavé set old single cut diamonds in a scalloped edged setting with low pierced

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

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

A mid 20th century 18ct gold diamond cluster ring. The brilliant-cut diamond, within a similarly-cut diamond surround, to the openwork gallery and plain band. Estimated total diamond weight 0.25ct. We

A mid 20th century gold sapphire and diamond ring. The twin circular-shape sapphires, with vari-cut diamond spacers and sides. Estimated total diamond weight 0.15ct. Hallmarks indistinct. Ring size L1