MESSIKA, A SPIKEY ALLIANCE DIAMOND RING in 18ct yellow gold, set with rows of round brilliant cut

A DIAMOND BAND RING in 18ct yellow gold, set with a row of round brilliant cut diamonds, punctuated by pairs of round brilliant cut diamonds, British hallmarks, size P / 7.5, 4.9g.

A DIAMOND ETERNITY RING in 18ct yellow gold, set all around with a single row of round brilliant cut diamonds all totalling 2.31 carats, British hallmarks, stamped D2.31, size P / 7.5, 2.3g.

A VINTAGE EMERALD AND DIAMOND RING in 18ct yellow gold, the elliptical face set with a row of alternating round cut emeralds and round brilliant cut diamonds, British hallmarks for London, 1972, size

A DIAMOND DRESS RING in 18ct yellow gold, set with five principal round brilliant cut diamonds, accented by two rows of round cut diamonds, stamped 750, size K / 5.25, 4.7g. 

GRAFF, A RUBY AND DIAMOND CLUSTER CROSSOVER RING in 18ct yellow gold, in cross over design, each end set with a pear cut ruby in a cluster of round brilliant cut diamonds, the band set with a row of s

A SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of 0.50 carats, British hallmarks, size G.5 / 3.75, 2.6g.

A VINTAGE DIAMOND GYPSY RING in 18ct yellow gold, set with a round brilliant cut diamond, band split, stamped 18ct, size L / 5.75, 4.5g.

NO RESERVE - A VINTAGE DIAMOND CLUSTER RING in 18ct yellow gold, set with a round brilliant cut diamond in a cluster of single cut diamonds, stamped E1165, size N / 6.75, 3.6g. 

CARTIER, A TRINITY DE CARTIER DIAMOND RING in 18ct yellow gold, the bands set with round brilliant cut diamonds, maker's mark JC, full British hallmarks, size W / 11, 11.5g.

NO RESERVE - A DIAMOND THREE STONE RING in 18ct yellow gold, set with three round brilliant cut diamonds with a combined total weight of approximately 1.30 carats, British hallmarks for 18ct gold, siz

A DIAMOND THREE STONE RING in 18ct yellow gold, set with three round brilliant cut diamonds all totalling 0.9-1.0 carat, partial British hallmarks, size N / 6.5, 3.2g.

AN ANTIQUE DIAMOND FIVE STONE RING in 18ct yellow gold, set with five round brilliant cut diamonds, partial British hallmarks for Birmingham 1918, size O1/2 / 7.5, 3.8g. 

NO RESERVE - A DIAMOND SOLITAIRE ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of approximately 0.23 carats, full British hallmarks for 18ct gold, size K / 5, 2.8g.

AN ANTIQUE RUBY AND DIAMOND RING in 18ct yellow gold, set with a row of graduated round cut rubies accented by rose cut diamonds, full British hallmarks for Chester 1913, size M / 6.25, 2.9g.&nbs

NO RESERVE - AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of alternating round cut sapphire and rose cut diamonds, full British hallmarks for 1902, size N1/2 / 7, 2.5g.&nbs

A DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of round brilliant cut diamonds all totalling 3.4-3.6 carats, full British hallmarks for 18ct gold, size N / 7, 6.0g.

A DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of round brilliant cut diamonds all totalling 1.8-2.0 carats, British import marks, size N / 6.5, 4.1g.

A FRENCH YELLOW DIAMOND RING in 18ct yellow gold, the stylised ring set with a round brilliant cut yellow diamond, French maker's mark, French assay marks, size K1/2 / 5.5, 5.1g.

NO RESERVE - A DIAMOND TOI ET MOI RING in 18ct yellow gold, set with two round brilliant cut diamonds within a stylised band, stamped 18ct, size Q / 8, 3.4g.

NO RESERVE - A DIAMOND TOI ET MOI RING in 18ct yellow gold, set with two round brilliant cut diamonds within a stylised band, stamped 18ct, size Q / 8, 3.4g.

VAN CLEEF & ARPELS, A VINTAGE DIAMOND RING, 1970S in 18ct yellow gold, the tapering band pave set round brilliant cut diamonds within a gold border, signed VCA and numbered, French assay marks for 18c

CHAUMET, A DIAMOND RING in 18ct yellow gold, the bombe face set with clusters of round brilliant cut diamonds, signed Chaumet Paris and numbered, stamped 750, size K1/2 / 5.5, 9.8g.

A DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with three round brilliant cut diamonds totalling 0.9-1.0 carats, stamped 18CT PLATINUM, size N1/2 / 7, 3.9g.

A DIAMOND RING in platinum and 18ct yellow gold, set with a cluster of round brilliant cut diamonds set on a texturised gold band, stamped PLAT, full British hallmarks for 18ct gold, size J / 4, 6.3g.