18ct bi-colour diamond necklet with nine central pa

An 18ct gold diamond brooch. Of bi-colour design, with intertwined undulating bars and brilliant-cut diamond highlights. AF. Estimated total diamond weight 0.25ct. Hallmarks for London, 2013. Length 4

A gentleman's 18ct gold diamond ring. Of bi-colour design, the brilliant-cut diamond, inset to a stepped panel, with grooved shoulders and tapered band. Estimated diamond weight 0.20ct, J-K colour, P1

An 18ct gold diamond three-stone ring. The brilliant-cut diamond line, with bi-colour mount. Total diamond weight 0.33ct, stamped to band. Hallmarks for London. Ring size N. Weight 3.7gms.

An 18ct gold diamond band ring. Of bi-colour design, the brilliant-cut diamond openwork scrolling foliate motif, to the scroll engraved sides and polished back panel. Estimated total diamond weight 0.

An 18ct gold diamond band ring. Of bi-colour design, the brilliant-cut diamonds, inset to the plain band. Estimated total diamond weight 0.30ct. Import marks for London. Ring size L. Weight 6.9gms. Ov

A pair of 18ct gold diamond earrings. Each of bi-colour design, the brilliant-cut diamond quatrefoil, suspended from a graduated similarly-cut diamond line surmount. Estimated total diamond weight 0.6

An 18ct gold diamond cross pendant. Of bi-colour design, the brilliant-cut diamond cross, suspended from a tapered surmount. Total diamond weight 0.50ct, stamped to mount. Import marks for Sheffield,

An 18ct gold diamond crossover ring. Of bi-colour design, comprising seven brilliant-cut diamond crossover bands, with tapered sides. Total diamond weight 0.88ct. Hallmarks for Birmingham. Ring size O

LOUIS VUITTON - an 18ct gold diamond airplane charm. Of bi-colour design, the plane, with twin propellers and brilliant-cut diamond cockpit and windows, suspended from a geometric surmount, with later

A mid 20th century 18ct gold and platinum diamond single-stone ring. Of bi-colour design, the brilliant-cut diamond, with tapered shoulders and single-cut diamond accents. Principal diamond estimated

An 18ct gold and platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with bi-colour gallery and band. Estimated total diamond weight 0.30ct. Ring size K. Weight 1.6gms.

An 18ct gold diamond five-stone ring. The graduated old-cut diamond line, with bi-colour mount and scrolling foliate shoulders. Estimated total diamond weight 0.45ct. Ring size N. Weight 3.4gms.

A diamond single-stone ring. Of bi-colour design, the brilliant-cut diamond, to the stepped shoulders and plain band. Diamond weight 0.20ct, stamped to the band, estimated I-J colour, P1 clarity. Hall

THEO FENNELL - an 18ct gold beryl and diamond 'Rainforest' ring. Of bi-colour design, the circular green beryl cabochon, hinged to reveal a frog, to the foliate and pave-set diamond band. Signed Fenne

and Colored Gem Bar Pin. Signed GWC 18ct bi-color gold bar pin displaying alternating bands of rose cut diamonds and faceted rubies with a central pearl measuring approx. 4.5mm and terminating in tref

An 18ct gold diamond and 'coloured' diamond cluster ring. Of bi-colour design, the brilliant-cut 'green' diamond, with similarly-cut 'green' diamond and diamond stepped surround. Estimated total colou

(19667) An 18ct gold diamond signet ring. The old-cut diamond, within a star setting, with bi-colour surround and engraved shoulders. Estimated diamond weight 0.20ct. Hallmarks for Birmingham, 1930. R

18ct yellow gold & platinum brooch, collet-set with 3x brilliant-cut diamonds, G colour, VS2, central diamond approx 0.12ct. Other two 0.08ct each. 3.8 grams, 5.7cm.

An onyx and diamond necklace. The tapered onyx hoop pendant, with overlaid single-cut diamond line and rope-twist detail, suspended from a bi-colour circular-shape link chain, with onyx hoop central d

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,

Central oval mixed cut emerald, measuring approx 5.0mm x 4.0mm x 2.42mm depth, weighing 0.30 carat estimated, colour medium to light chrome green, moderate inclusions. Surround of twelve round brillia

A 9ct gold cased fob watch on an 18ct gold bi-colour chain, watch 46.6g, chain 6g

A brilliant-cut diamond bi-colour ballerina brooch.May be worn as a pendant.Total diamond weight 1.448cts, stamped to mount, estimated G-H colour, VS-SI clarity.Stamped 18K 750. Length 5cms. 12.9gms.

A diamond cuff. Of segmented design, the kite-shape interlocking Greek-key motif, alternating with pave-set diamond and bi-colour heart spacers. Estimated total diamond weight 0.50ct. Inner diameter 5