A DIAMOND COCKTAIL RING, of concave design, the frontispiece pavé-set with brilliant-cut diamonds,

A RUBY AND DIAMOND COCKTAIL RING, of concave design, embellished with two flower motifs pave-set with circular-cut rubies and brilliant-cut diamonds, within a similarly-cut diamond surround, mounted i

A DIAMOND RING, BY CHIMENTO, the frontispiece pavé-set with brilliant-cut diamonds, mounted in 18K gold, Italian registry mark, signed Chimento, total gross weight approx. 16g, ring size N½,

A DIAMOND DRESS RING, of openwork design, the frontispiece pavé-set with brilliant-cut diamonds and four larger similarly-cut diamond accents, mounted in 18K gold, diamonds approx. 1.80cts total,

AN ENAMEL AND DIAMOND COCKTAIL RING Of openwork bombé design, the centre pavé-set with brilliant-cut diamonds, between black enamel stripes, mounted in 18K gold, diamonds approximately 1.00c

A DIAMOND COCKTAIL RING, BY MESSIKA Composed of a double hoop, the frontispiece pavé-set with brilliant-cut diamonds, to a floating brilliant-cut diamond at the centre within collet-setting, moun

A GEM-SET AND DIAMOND RING, BY CARTIER, CIRCA 1980 Of bombé design, the frontispiece set with calibré-cut rubies, sapphires and emeralds alternated between rows of brilliant-cut diamonds, mo

Gold and Diamond Bypass Ringin a bypass design centering on a round brilliant cut diamond weighing approximately .54 total carat (H color, I1 clarity), and with pavè set full cut round diamonds wei

CULTURED PEARL, TURQUOISE AND DIAMOND RING of toi-et-moi design, the ends set with a bouton-shaped cultured pearl and a cabochon turquoise respectively, the mount pavé-set with brilliant-cut diamon

Ladies 14kt Yellow Gold cocktail ring set with approx. 1.00ct of Round Brilliant Cut Diamonds. Stunning classic design. Marked with maker's hallmark and 14KT. Ring size 5 1/2. Weighs approx. 4.0 grams

14K Y/G diamond cocktail ring set with brilliant cut diamonds, tdw approx. 1.0ct, wt. 5.6gm, size 6.7

A GROUP OF THREE DIAMOND RING, each frontispiece set with brilliant-cut diamonds to a beaded plain hoop, mounted in 18K gold (one rose, one yellow and one white gold), ring sizes two J½, one si

14K Y/G diamond cocktail ring set with 18 brilliant cut diamonds, tdw approx. 0.50ct, wt. 4.5gm, size 6

DIAMOND CLUSTER RING Of flowerhead design, set with brilliant-cut diamonds, diamonds approx. 2.15cts total, ring size approx. L

A DIAMOND NECKLACE, the frontispiece pavé-set with brilliant-cut diamonds, mounted in 14K gold, diamonds approximately 2.80cts total, length 41cm

A ruby, green garnet and diamond ringof bombé design, set with round brilliant-cut diamonds or green garnets, centered by an oval cabochon ruby, weighing approximately 1.50 carats, in eighteen kara

GEM-SET AND DIAMOND DRESS RING Of bombé design, set with brilliant-cut diamonds and circular-cut sapphires, rubies and emeralds, ring size approx. Q For further information on this lot please vis

AN 18 CARAT GOLD DIAMOND NAVETTE RING, pavé-set with round brilliant-cut diamonds, to tapering shoulders, total estimated diamond weight 0.60 carat approximately, hallmarked with sponsor's mark 'TH

14K Yellow Gold diamond cocktail ring, set with 19 round brilliant cut diamonds, 2.5 - 3.5 mm dia, 5-15 pts ea, about 1.90 carats tdw, size 7, 3.5 dwt

A DIAMOND DRESS RING Of bombé design, set with brilliant-cut diamonds throughout, mounted in 18K gold, diamonds approximately 6.00cts total, French import mark, ring size L

DIAMOND TWO-STONE RING Of crossover design, set with brilliant-cut diamonds, weighing 1.20 and 1.31 carats, ring size approx. N½

Vintage Art Deco style platinum diamond cocktail ring, set with round brilliant and baguette-cut diamonds; approx: 1.50 carats total weight; color: H-I, clarity: VS - SI1. Marked: "PLAT". Ring measure

KAT FLORENCE: DIAMOND-SET RING Of starburst design, set throughout with brilliant-cut diamonds, mounted in 18 carat gold, diamonds approx. 0.70ct total, signed Kat Florence, partial UK hallmark, ring

AN EMERALD AND DIAMOND NECKLACE, of foliate design pavé-set with brilliant-cut diamonds and suspending a pear-shaped emerald, mounted in 14K gold, length 42cm, total gross weight approx. 30g

DIAMOND RING Of cross-over design, set throughout with brilliant-cut diamonds, diamonds approx. 0.65ct total, ring size very approx. M½ For further information on this lot please visit Bonhams.co