A mid 20th century platinum sapphire and old-cut diamond cluster ring.Sapphire calculated weight

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 silver sapphire cabochon and old-cut diamond floral brooch.Sapphire calculated weight 12.42cts, based on estimated dimensions of 12.6 by 11 by 8.3mms.Estimated total diamond weight

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

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 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 an old-cut diamond, illusion-set surround. Estimated total diamond weight 0.30ct. Weight 5.7gms.

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 mid 20th century platinum old-cut diamond brooch, with baguette-cut diamond accents. Estimated total diamond weight 4cts.French re-strike marks. Length 3.2cms. 11.7gms.

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 early to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.Estimated total diamond weight 1.20cts, H-I colour, SI1-P1 clarity.Ring size O1/2. 3.3gms.

An early 20th century platinum and gold, turquoise and old-cut diamond cluster brooch.Turquoise estimated dimensions of 17.6 by 16 by 8.5mms.Estimated total diamond weight 3.90cts, G-I colour, SI1-P1

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 platinum diamond five-stone ring. The graduated old-cut diamond line, to the ridged shoulders and plain band. Estimated total diamond weight 0.65ct, I-J colour, SI1-P1 clarity. Weig

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 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

A mid 20th century 9ct gold sapphire and diamond five-stone ring. Designed as three rectangular-shape sapphires, with old-cut diamond spacers, to the replacement band. Estimated total diamond weight 0

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

A mid 20th century gold and platinum diamond cluster ring. The circular-cut diamonds, to the tapered band. Estimated total diamond weight 0.35ct. Weight 2.5gms.

PAIR OF DIAMOND AND SAPPHIRE TARGET CLUSTER EARRINGS, MID 20TH CENTURY The old brilliant-cut diamonds in rubover settings, within a surround of calibré-cut sapphires, diamonds approximately 1.40

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 mid 19th century 18ct gold sapphire and diamond cluster ring. The oval-shape pink sapphire collet, within an old-cut diamond surround, to the plain band. Estimated total diamond weight 0.30ct. Weigh

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