A TOURMALINE SNAKE RING, BOUCHERON in 18ct yellow gold,

AN ANTIQUE DIAMOND SNAKE RING in 18ct yellow gold, designed as a coiled snake, the head set with a row of old cut diamonds, the eyes set with further old cut diamonds, full British hallmarks for Birmi

A RUBY AND DIAMOND SNAKE RING in 18ct yellow gold, designed as a coiled snake, the head set with an old cut diamond, the eyes set with round cut rubies, no assay marks, size Q1/2 / 8.5, 5.1g. 

A DIAMOND SNAKE RING in 18ct yellow gold, designed as a coiling snake, the head set with an old cut diamond, full British hallmarks for London 1927, size N / 6.75, 6.5g.

AN ANTIQUE VICTORIAN MOONSTONE SNAKE RING, 1892 in 18ct yellow gold, depicting a coiled snake with a moonstone of 2.22 carats set to the head and old cut diamond eyes, full British hallmarks for Birmi

ANTIQUE VICTORIAN DIAMOND SNAKE RING, 1891 in 18ct yellow gold, designed as two snakes, their bodies coiled around each other, set with rose cut diamonds to the eyes, maker's mark GM, two full sets of

A CHROME TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut chrome green tourmaline of 12.76 carats in a stylised border of round brilliant cut diamonds, partial British hallmarks

A PINK TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with an oval cut pink tourmaline of 2.36 carats, the band set with two marquis cut diamonds both totalling 0.24 carats, stamped K18, size K

A MULTICOLOURED TOURMALINE FULL ETERNITY RING in 18ct yellow gold, set all around with three rows of cabochon pink, green, blue and yellow tourmalines, stamped 18, size N / 6.5, 3.3g. Guaranteed UK Ma

A GREEN TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cabochon green tourmaline in a cluster of single cut diamonds, full British hallmarks, size N / 6.75, 5.7g.

ANTIQUE DIAMOND SNAKE RING, 19TH CENTURY in 18ct yellow gold, in the form of a coiled snake set with five old and round cut diamonds totalling 0.65-0.75 carats, British hallmarks for 18ct gold, size S

A VINTAGE GREEN TOURMALINE AND DIAMOND DRESS RING in 18ct yellow gold, set with a step cut green tourmaline of 2.11 carats, between round brilliant cut diamonds, stamped 18K, size O / 7.25, 3.8g.

A PAIR OF TOURMALINE AND AMETHYST DRESS RINGS in 18ct yellow gold, each set with a row of five step cut amethysts and tourmalines, stamped 750, size O / 7, 9.1g.

A Victorian 18ct yellow gold double snake-head ring with diamond eyes (one lacking black stone to head), fully hallmarked, size R, 9.2 grams, together with a late 19th / early 20th century leather-bou

BOUCHERON, A GOLD DOME RING in 18ct yellow gold, comprising a gold sphere between fluted shoulders, signed Boucheron and numbered, stamped 750, size O / 7, 9.4g.

Lot of two 14k Yellow gold snake rings. (1) chrome tourmaline and diamond snake ring, a snake coiled around and appx. 3.5mm chrome tourmaline with 0.01ct diamond set on its head, size 11, 3.4g. (2)14k

BVLGARI, A B ZERO 1 RING 18ct yellow gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped 750, size H / 3.5, 10.7g.

Gudrun Laves, Ring, 18ct yellow gold, opal. 14 gram. Inner circumference 53 mm. Signed: 750 (embossed). ,

VICTORIAN PINK TOPAZ, PEARL AND ENAMEL MEMORI RING.18ct yellow gold.Pearls well matched, probably natural. ( Untested )Enamel in good condition.With inscription to the back.Size: P 3.9 gram.

A DIAMOND SOLITAIRE ENGAGEMENT RING in 18ct yellow gold, set with a radiant cut diamond of 5.63 carats, British hallmarks for 18ct gold, size N / 6.5, 7.0g. Accompanied by a facsimile gemmological rep

A DIAMOND CLUSTER RING in 18ct yellow gold, set with an antique cushion cut diamond of 1.51 carats in a cluster of old cut diamonds totalling 1.4-1.6 carats, the diamonds all totalling 2.9-3.1 carats,

A VINTAGE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon sapphire and an old cut diamond of 1.47 carats, accented by further old mine cut diamonds, French assay marks for 18 carat

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 FINE RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold and white gold, set with an oval cut ruby of 7.05 carats in a cluster of old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped 1

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.