A diamond cluster ring. Of bi-colour design, the

A diamond cluster ring. Of bi-colour design, the vari-shape rose-cut diamond mosaic, to the textured mount and band. Maker's mark for Yossi Harari. Total diamond weight 1.85cts, estimated G-H colour,

A diamond cluster ring. Of bi-colour design, the rose-cut diamond, within a diamond point and engraved openwork surround. Foreign marks. Ring size P. Weight 4.2gms.

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

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

A gentleman's 9ct gold diamond ring. Of bi-colour design, the brilliant-cut diamond square-shape panel, to the grooved shoulders. One diamond deficient. Estimated total diamond weight 1ct. Hallmarks f

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 diamond single-stone ring. Of bi-colour design, the old-cut diamond, with tapered shoulders. Estimated diamond weight 0.45ct, K-L colour, SI2-P1 clarity. Ring size J1/2. Weight 2.7gms.

A diamond three-stone ring. Of bi-colour design, the brilliant-cut diamond line, with single-cut diamond shoulders. Estimated total diamond weight 0.35ct. Ring size L1/2. Weight 2.7gms.

A diamond dress ring. Of bi-colour design, the two brilliant-cut diamond interlinked curved lines, with tapered band. Estimated total diamond weight 0.25ct. Ring size M. Weight 3.4gms. Overall conditi

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

A gentleman's diamond dress ring. Of bi-colour design, the marquise-shape diamond collet, to the ridged shoulders and tapered band. Estimated diamond weight 0.65ct, I-J colour, P1 clarity. Weight 11.2

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

A tsavorite garnet and diamond clover ring. Of bi-colour design, the pave-set tsavorite garnet and diamond clover, with chevron shoulders. Estimated total diamond weight 0.60ct. Ring size M. Weight 10

A diamond flexible ring. Of bi-colour design, comprising a series of textured batons and panel, with brilliant-cut diamond scattered accents. Estimated total diamond weight 0.25ct. Ring size N. Weight

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.

A gentleman's diamond dress ring. Of bi-colour design, the square-shape diamond line, to the raised shoulders and tapered band. Estimated total diamond weight 0.40ct, I-J colour, VS1-SI1 clarity. Weig

A mid 20th century gold diamond buckle ring. Of bi-colour design, the textured and tapered band, with diamond buckle motif. Ring size L. Weight 4.5gms.

A platinum diamond single-stone ring. Of bi-colour design, the brilliant-cut diamond, with bar sides and tapered band. Diamond weight 0.33ct, H-I colour, P1 clarity. Hallmarks for London. Ring size O.

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

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

A diamond full-circle eternity ring. Of bi-colour openwork design, the brilliant-cut diamond kite-shape line, to the textured bar sides. Estimated total diamond weight 0.10ct. Ring size L. Weight 6.7g

A beryl and diamond bar brooch. Of bi-colour design, the oval-shape green beryl and rose-cut diamond cluster, with similarly-set highlight, pierced scrolling foliate sides. Length 8cms. Total weight 1

A diamond hinged bangle. Of bi-colour design, the brilliant-cut diamond scrolling line, with similarly-cut diamond floral cluster highlights, atop the openwork scrolling bangle. Estimated total diamon

An 18ct gold diamond cluster ring. Of floral design, the brilliant-cut diamond cluster, to the tapered shoulders. Estimated total diamond weight 3cts, I-J colour, SI2-P2 clarity. Hallmarks for London,