An early to mid 20th century platinum graduated old-cut diamond collet, pierced geometric

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.

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 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 lady's mid 20th century platinum diamond manual wind cocktail watch. The rectangular-shape cream dial, with black Arabic numerals, to the single-cut diamond surround and old-cut diamond geometric op

American, early-mid 20th century. Horseshoe shaped brooch, 16-18K (tested with x-ray metal tester), set with 35 graduated old European cut diamonds, approx. 2.50cts. total weight. Measures approx. 1.5

An early 20th century 18ct gold diamond five-stone ring. Designed as a graduated old-cut diamond line, with pierced surround and tapered shoulders. Estimated total diamond weight 0.35ct. Ring size O.

SOLITAIRE DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond, between geometric shoulders, stamped 18ct Plat, size K / 5.25, 2.2g.

A set of early 20th century 18ct gold and platinum mother-of-pearl and diamond dress studs. Each designed as an old-cut diamond collet, within a mother-of-pearl surround with engraved border. Estimate

NO RESERVE - A DIAMOND THREE STONE RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with a trio of graduated old cut diamonds within a stylised band, stamped 18ct, size M / 6.25, 2.9g.

NO RESERVE - A DIAMOND THREE STONE RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with a trio of graduated old cut diamonds within a stylised band, stamped 18ct, size M / 6.25, 2.9g.

AN EARLY 20TH CENTURY DIAMOND PENDANT NECKLACE The fine cable-link chain leading to a graduated row of old brilliant-cut diamonds, suspending a pierced drop with foliate detailing, similarly-set with

An early 20th century 18ct gold split pearl and diamond five-stone ring. The graduated split pearl line, with old-cut diamond spacers and pierced gallery. Estimated total diamond weight 0.15ct. Ring s

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

AN ANTIQUE DIAMOND BRACELET, EARLY 20TH CENTURY in white gold or platinum, formed of alternating floral and geometric links jewelled with old round and rose cut diamonds, unmarked, 19.5cm, 34.3g.; AN

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 old-cut diamond two-stone crossover ring, with asymmetric shoulders, estimated total diamond weight 0.55ct, H-J colour, SI2-P1 clarity, band stamped PLAT, ring size N, 2

EARLY 20TH CENTURY PLATINUM AND OLD MINE CUT DIAMOND ARROW PIN. Point and feather tail set with total of 28 old mine cut diamonds together weighing approximately 2.75 ct. - L: 3".

incisa e sbalzata, con tre diamanti centrali taglio vecchio e diamanti taglio rosa, cts. 4.00 totali circa. Cm. 9. Gr. 8 An early 20th Century platinum brooch with old cut diamonds and rose cut diamon

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

An early 20th century platinum and gold, old and rose-cut diamond ring.Estimated total diamond weight 0.75ct. Ring size P. 5.3gms.

A mid 20th century diamond crossover ring. The old-cut diamond collet duo, to the similarly-cut diamond asymmetric shoulders and plain band. Principal diamond estimated total weight 0.75ct, J-K colour

A mid 20th century diamond five-stone ring. The graduated old-cut diamond line, with diamond point double spacers and carved gallery. Estimated total diamond weight 0.70ct, I-K colour, P1 clarity. Rin

An early 20th century 18ct gold alternating graduated split pearl and old-cut diamond five-stone ring.Estimated total diamond weight 0.65ct, G-I colour, SI clarity.Stamped 18c. Ring size I1/2. 3.1gms.

A mid 20th century gold diamond five-stone ring. The graduated old-cut diamond line, to the tapered shoulders and plain band. Estimated total diamond weight 1ct. Principal diamond estimated I-J colour