AN ANTIQUE DIAMOND DRESS RING the geometric pierced face set with an old European cut diamond of

AN ART DECO DIAMOND DRESS RING in platinum, the geometric face set with two old cut diamonds of approximately 1.15 and 1.04 carats, accented by rose cut diamonds, French import mark, size Q / 8.25, 5g

ANTIQUE DIAMOND DRESS RING the pierced octagonal face set with five rose cut diamonds, size O / 7, 2.1g.

A DIAMOND AND EMERALD DRESS RING the circular face set with an old European cut diamond within a border of single cut diamonds and calibre cut emeralds, accented by further calibre cut emeralds, marke

A DIAMOND AND SAPPHIRE DRESS RING the pierced face set with a principal old cut diamond, accented by calibre cut blue sapphires and single cut diamonds, no assay marks, size M / 6.25, 5.1g.

AN ART DECO DIAMOND DRESS RING in platinum, the geometric face set with rows of old cut diamonds, the diamonds all totalling 1.3-1.5 carats, stamped 950, size O / 7, 7.2g.

A FINE ANTIQUE DIAMOND DRESS RING, EARLY 20TH CENTURY in yellow gold and platinum, the scrolling face set with old cut diamonds accented by rose cut diamonds, no assay marks, size J / 4.5, 3.6g.

NO RESERVE - AN ANTIQUE DIAMOND DRESS RING in 18ct yellow gold, the navette shaped face set with old cut diamonds, the diamonds all totalling 1.9-2.1 carats, partially obscured marks probably British

NO RESERVE - AN ART DECO DIAMOND AND RUBY DRESS RING in 18ct yellow gold, the hexagonal face set with old European brilliant cut diamonds, within a border of step cut rubies, stamped 18, size Q / 8, 2

AN ANTIQUE DIAMOND DRESS RING, CIRCA 1800 in yellow gold and silver, the circular face set with a cluster of old cut diamonds, all totalling 1.4-1.6 carats, unmarked, size J / 5, 2.3g.

A DIAMOND NAVETTE SHAPED DRESS RING in 14ct gold, the face set with old European brilliant cut and single cut diamonds, Dutch import assay mark for 14ct gold, size L / 5.5, 3.5g. Guaranteed UK Christm

ANTIQUE DIAMOND DRESS RING, 19TH CENTURY in high carat yellow gold, the face set with twelve graduated old cut and rose cut diamonds, the diamonds all totalling 0.9-1.1 carats, unmarked, size T / 9.5,

AN ANTIQUE OPAL AND DIAMOND DRESS RING in 18ct yellow gold, set with a trio of graduated oval cabochon opals, accented by pairs of old European brilliant cut diamonds, full British hallmarks (partly o

An antique diamond and platinum ring set with four old European-cut diamonds weighing approximately 0.80, 0.75, 0.45, and 0.45 carat each, mounted in pierced and etched platinum with a floral motif. (

A BELLE EPOQUE PEARL AND DIAMOND DRESS RING The central row set with five seed pearls between old European-cut diamond borders within millegrain setting and pierced scrolling gallery, mounted in 18K g

This is an antique 14K yellow gold ring band with platinum filigree face set with two sapphires flanking an Old European cut diamond. The diamond clarity is VS and the color is GH. The ring is a size

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1900 in yellow gold and silver, the navette face set with a cushion cut blue sapphire accented by rose cut diamonds, with pierced decoration to the sh

AN ANTIQUE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the navette shaped face set with a cushion cut blue sapphire of 1.18 carats, within a surround of old European brilliant cut di

A DIAMOND DRESS RING set with an old European cut diamond between two round brilliant cut diamonds, the diamonds all totalling 1.4-1.6 carats, no assay marks, size N / 6.5, 3.7g.

A DIAMOND AND ONYX DRESS RING set with an old European cut diamond of 4.46 carats in a calibre cut onyx border, further accented by a border of old cut diamonds, no assay marks, size R / 8, 6.1g.

AN ART DECO DIAMOND DRESS RING the stylised face set with old cut and rose cut diamonds, no assay marks, size M / 6.25, 2.6g.

Antique Platinum and Diamond Ringcentering on three vertically set old European cut diamonds weighing approximately 1.56 total carats (H-I color, SI1-I1 clarity) and further set to border and shoulder

A FRENCH RETRO DIAMOND RING in 18ct yellow gold, the geometric face set with two old cut diamonds, accented by rows of rose cut diamonds, French assay mark, size L / 5.5, 7.9g.

One Ladies Antique Style Diamond Cluster Ring Set with one bezel-set center Old European cut Diamond measuring appr. 5.5 mm in diameter and 3.8mm in depth, calculated to weigh .73 carats with an estim

AN ANTIQUE ROSE GOLD AND DIAMOND RING Set with old European and old mine-cut diamonds, size 6. For further information on this lot please visit Bonhams.com For further information about this lot plea