A diamond bi-colour swivel band ring.

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

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.

Two 9ct gold rings. To include an illusion-set brilliant-cut diamond single-stone ring, together with a bi-colour woven band ring. Hallmarks for 9ct gold. Weight 4.9gms. Overall condition fair to good

A diamond dress ring. The bi-colour, open band, with brilliant-cut diamond accent grooved terminals. Estimated total diamond weight 0.20ct. Stamped 750. Approximate ring size M. Weight 10.2gms.

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.

ANTONIAZZI CHIAPPE (attributed to) - a sapphire and diamond dress ring. The circular sapphire cabochon, with graduated baguette-cut diamond line sides, to the bi-colour tapered band. Indistinctly sign

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.

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 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 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

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 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

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 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

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

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 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

Five diamond and gem-set rings. To include an 18ct gold diamond tri-colour crossover band ring, a 9ct gold diamond three-stone ring, with three further rings. Estimated total diamond weight 0.25ct. On

A mid 20th century 18ct gold garnet dress ring. The rectangular-shape garnet, with bi-colour mount and tapered band. Ring size I 1/2. Weight 5.2gms. Overall condition fair to good. Some surface scratc

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

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.

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 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