An early to mid 20th century platinum old-cut diamond single-stone ring, with circular-cut diamond

A mid 20th century platinum and 18ct gold diamond single-stone ring. The circular-cut diamond, with pave-set diamond line sides. Principal diamond estimated weight 0.30ct, I-J colour, P1 clarity. Ring

An early 20th century 14ct gold diamond single-stone ring. The old-cut diamond collet, to the rose-cut diamond foliate shoulders with circular-shape emerald accents. Principal diamond estimated weight

A mid 20th century turquoise and diamond five-stone ring. The old-cut diamond, with circular turquoise cabochon and single-cut diamond sides, to the crossover shoulders. Estimated total diamond weight

A mid 20th century turquoise and diamond five-stone ring. The old-cut diamond, with circular turquoise cabochon and single-cut diamond sides, to the crossover shoulders. Estimated total diamond weight

An early 20th century 9ct gold old-cut diamond single-stone ring.Estimated diamond weight 0.35ct, H-I colour, SI clarity.Ring size K1/2. 1.6gms.

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

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.

Two early 20th century platinum and 18ct gold diamond and gem-set rings. To include a diamond three-stone crossover ring, together with an alternating sapphire and old-cut diamond five-stone ring. Est

An early 20th century diamond single-stone ring. The circular-cut diamond, within an openwork scrolling surround, to the similarly designed shoulders. Estimated diamond weight 0.25ct, I-J colour, VS c

A mid 20th century diamond five-stone ring. The circular-cut diamond, with graduated old-cut diamond sides. Principal diamond estimated weight 0.85ct, I-J colour, P1-P2 clarity. Weight 2.6gms.

An early 20th century 18ct gold diamond single-stone ring. The old-cut diamond, with scalloped mount and tapered shoulders. Estimated diamond weight 0.50ct, L-tinted colour, P1 clarity. Hallmarks for

An early 20th century 18ct gold diamond single-stone ring. The old-cut diamond, with openwork surround and grooved shoulders. Estimated diamond weight 0.10ct. Ring size K1/2. Weight 2.7gms. Overall co

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

Five gold gem-set rings. To include an early 20th century platinum and 18ct gold single-cut diamond three-stone crossover ring, an early 20th century 18ct gold and platinum synthetic ruby dress ring,

A mid 20th century platinum and 18ct gold diamond three-stone ring. The slightly graduated circular-cut diamonds, to the tapered band. Estimated total diamond weight 0.35ct, I-J colour, SI clarity. Ri

A mid 20th century 18ct gold and platinum diamond single-stone ring. The brilliant-cut diamond collet, to the tapered shoulders and plain band. Estimated diamond weight 0.45ct, J-K colour, P1. Weight

An early 20th century diamond three-stone ring. The graduated circular and old-cut diamond line, star-set to the plain band. Estimated total diamond weight 0.35ct, principal diamond estimated H-I colo

A mid 20th century platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with single-cut diamond line sides, to the plain band. Estimated total diamond weight 0.55ct, I-J colour

An early 20th century platinum and 18ct gold diamond dress ring. The three graduated circular-cut diamonds, within a single-cut diamond scalloped millegrain border. Estimated total diamond weight 0.20

A mid 20th century 18ct gold sapphire and diamond five-stone ring. The circular-shape sapphires, with old-cut diamond intervals, to the plain band. One synthetic sapphire replacement. Estimated total

A mid 20th century platinum and 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, to the single-cut diamond asymmetric sides and plain band. Estimated total diamond weight

An early 20th century 18ct gold diamond five-stone ring. The graduated circular and single-cut diamond line, to the scrolling gallery and shoulders. Estimated total diamond weight 0.50ct, H-I colour,

An early 20th century gold ruby and diamond three-stone ring. The circular-shape ruby line, with old-cut diamond double spacers, to the scrolling shoulders and plain band. Estimated total diamond weig

An early 20th century 18ct gold sapphire and diamond five-stone ring. The alternating circular-shape sapphire and old-cut diamond line, to the tapered shoulders. Estimated total diamond weight 0.40ct,