AN ART DECO ONYX AND DIAMOND RING set with an octagonal shaped polished onyx set with an old cut ...

AN ART DECO ONYX AND DIAMOND RING in platinum, comprising a faceted onyx tablet set with an old cut diamond of 0.60 carats, the shoulders set with single cut diamonds and further inlaid onyx, no assay

ANTIQUE ART DECO DIAMOND AND ONYX BRACELET in gold or platinum, in Art Deco design set with polished onyx, old and rose cut diamonds, unmarked, 17cm, 9g.

Art Deco Diamond, Onyx, 14k RingFeaturing an old cut diamond weighing approximately 0.20 ct. centered in a black onyx plaque, set in a 14k yellow gold filigree ring mounting, size 8 1/2. Gross weight:

AN ART DECO DIAMOND AND ONYX RING in 18ct gold, the central 0.23 carat round cut diamond set against a polished black onyx background, encircled by round cut diamonds, French assay marks, size L / 6,

AN ART DECO ONYX AND DIAMOND JABOT PIN BROOCH the body terminated by drop shaped motifs set with black onyx cabochons within borders of old and rose cut diamonds, unmarked, 8.3cm, 7.3g.

A FINE ART DECO CORAL, DIAMOND AND ONYX BROOCH in 14ct yellow gold, set with a sugarloaf cabochon coral against a pierced geometric ground, accented by old and single cut diamonds and polished onyx ba

Art Deco Style Platinum, Diamond, and Black Onyx Ringthe platinum navette shaped mount with milgrain detailing set to the center with three marquise cut diamonds weighing approximately .70 total carat

Title: Art Deco Platinum Diamond Ring Description: Art Deco Platinum Diamond Ring featuring a nevette shaped design centrally set with three old mine cut diamonds weighing approx. .60cts framed with 2

A FRENCH ART DECO DIAMOND DRESS RING in platinum, the navette shaped face set to the centre with an old mine cut diamond of 0.70 carats between two old mine cut diamonds, accented by further rose cut

A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.

Art Deco 14K White Gold Diamond Ring, hand fabricated and polished, featuring one bezel set old miner cut diamond, weighing approx. 0.08 carat, further decorated with 4 bead set single cut diamonds, w

A ladies handmade Art Deco platinum engagement ring, having an octagonal top with a prong set Old European cut diamond (approximately 0.34 carats total weight, color I, clarity I2) and filigree decora

ANTIQUE ART DECO CORAL, ONYX AND DIAMOND BRACELET in white gold, in Art Deco design set with polished coral, onyx and rose cut diamonds, stamped 375, 18cm.

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

AN ART DECO ONYX AND DIAMOND BAR BROOCH, CIRCA 1925 Set with two tapering onyx cabochons within a pierced surround set with old brilliant and single-cut diamonds, millegrain detailing throughout, moun

Antique 18K white gold ring with a spinning .65 carat European cut diamond (K color, SI clarity), set in black onyx. Size 7.5

Circa 1920. Art Deco Platinum Ring set with a center Oval shaped Old European cut Diamond Approx. 0.40 carats. K color, VS2 clarity. Surrounded with white Old mine and Rose cut Diamonds weighing Appro

AN ART DECO DIAMOND DRESS RING in 14ct yellow gold, set with a trio of old cut diamonds within an elongated octagonal face, stamped 585, size P / 7.5, 1.9g.

Art Deco 18K white gold bar pin features an inlaid central onyx bow design accented with approximately .25ct Collette set old European cut diamond. Complemented on sides by small bead set single cut d

LACLOCHE FRÈRES: ART DECO DIAMOND-SET BROOCH, CIRCA 1925 The onyx plaque, applied with a giardinetto motif set with carnelian cabochons, old single-cut and rose-cut diamonds, the geometric border

AN ART DECO ONYX AND DIAMOND NEGLIGEE NECKLACE in 18ct yellow gold and silver, the trace link chain suspending a pendant set with two rows of old cut diamonds, each terminated with a circular onyx dis

AN ART DECO ONYX AND DIAMOND NEGLIGEE NECKLACE in 18ct yellow gold and silver, the trace link chain suspending a pendant set with two rows of old cut diamonds, each terminated with a circular onyx dis

The six rings include a Victorian patriotic "red, white and blue gem" ring, with central OMC diamond, approx. .17 ct.; An Art Deco ring with convertible head, displaying a single-cut diamond set onyx