An Italian chrysoprase and onyx dress ring by Cortecci,

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.

A diamond and onyx dress ring. The baguette-cut diamond line crossover terminals, with onyx spike detail. Estimated total diamond weight 1.25cts. Ring size N. Weight 5.8gms.

AN ANTIQUE DIAMOND AND ONYX DRESS RING in yellow gold, the face set with a stylised polished piece of black onyx, with applied cluster of rose cut diamonds, unmarked, size P / 7.75, 11.7g.

A cultured pearl, diamond and onyx dress ring. The cultured pearl, measuring 13.6mms, with brilliant-cut diamond surround and onyx cabochon sides, intersected by a similarly-cut diamond line. Estimate

A VINTAGE ONYX DRESS RING in 9ct yellow gold, set with a rectangular polished piece of onyx on a textured band, stamped 9CT, size P / 7.5, 13.3g.

AN ANTIQUE CHRYSOPRASE DRESS RING in yellow gold and silver, size N / 7, 4.0g.

A paste and onyx dress ring. The circular-shape colourless paste, atop a lozenge-shape onyx panel, with rope-twist surround. Ring size M. Weight 2.7gms. Overall condition fair. Surface scratches/ wear

AN ONYX DIAMOND DRESS RING in Art Deco design, comprising a polished onyx tablet, inlaid with three old cut diamonds, the shoulders accented with further old cut diamonds, the diamonds all totalling 0

AN ONYX DIAMOND DRESS RING in Art Deco design, comprising a polished onyx tablet, inlaid with three old cut diamonds, the shoulders accented with further old cut diamonds, the diamonds all totalling 0

A vari-cut diamond and onyx geometric dress ring.Estimated total diamond weight 0.45ct, G-I colour, VS2-P1 clarity.Stamped 950. Ring size M1/2. 5.1gms.

AN ONYX AND DIAMOND DRESS RING The onyx stripes alternating with rows of brilliant-cut diamonds, each side terminating in a similarly-set plaque with calibré-cut diamond highlights, mounted in 18

A gentleman's onyx and diamond dress ring. The rectangular-shape black onyx panel, with brilliant-cut diamond highlight, to the floral embossed shoulders and tapered band. Ring size Q. Weight 31.3gms.

FRED PARIS, AN ONYX AND DIAMOND DRESS RINGThe central diagonal row of brilliant cut diamonds between shaped polished onyx panels, approximately 0.20 carats total, the shank signed Fred Paris, with Fre

SIZE 8 ( 5 dwt)

An onyx and diamond dress ring. The cushion-shape onyx panel, with old-cut diamond highlight, to the textured surround and tapered shoulders with engraved detail. Weight 6.5gms.

Measurements: 1/2" Wide Size: 7 3/4 Crafted with onyx & chrysoprase Material: sterling silver Hallmark: 925 Condition: Like new SKU-860

set with a center round onyx cabochon approx. 13mm (minor specks of glue residue at prong areas observed under magnification), accented with 42 round diamonds approx. 1.26 carats (according to certifi

Vintage 1970s, 14k gold ring, with onyx, chrysoprase and center 0.17ctw in diamonds. Ring size - 6.5, ring top - 25mm x 18mm. Weight - 10.1 grams.

A 14ct gold onyx and cultured pearl dress ring. The central cultured pearl and carved oval-shape onyx panel, with rope-twist surround, to the tapered shoulders. Hallmarks for Sheffield, 2011. Weight 4

Estate Italian 18kt Yellow Gold Diamond Onyx Gargoyle Ring. Unique ring set with black onyx and four round cut white diamonds as the eyes of two gargoyles / satyrs. Ring size 6, can be resized. Weighs

Diamond, onyx, chrysoprase 18k yellow gold bombe ring. Unknown makers mark on outside of ring. Ring features an onyx inlaid center flanked with vibrant green chrysoprase inlays accented with 11 bead s

NO RESERVE, GAVELLO, ONXY AND DIAMOND DRESS RING, set with an onyx and diamonds on the 4 corners totalling ca. 1 ct. Signed Gavello. Size I. 24.6 grams.

An 18ct gold dress ring. Designed as an oval onyx and pink hardstone articulated panel, with floral accent overlay and pave-set diamond shoulders. Signed Harpos. Estimated total diamond weight 0.60ct.

A CITRINE DRESS RING, MARINA B in 18ct yellow and white gold, the oval cut citrine raised between tapering two-colour gold shoulders, signed Marina B and numbered, Italian assay marks, size N / 6.75,