AN ART DECO ONYX AND DIAMOND BROOCH the plain bar set

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

ART-DECO DIAMOND, ONYX AND CORAL BROOCH, Set with diamonds totalling approx. 1.10 ct. Accentuated with 4 onyx bars and a sugarloaf cabochon cut coral. L. 3.6 cm. 7.8 grams.

1.68 CARAT DIAMOND AND ONYX BAR BROOCH in high carat yellow gold, in Art Deco design set with round cut diamonds totalling approximately 1.68 carats and faceted onyx, unmarked, 6.6cm, 5.3g.

AN ART DECO DIAMOND BAR BROOCH, CIRCA 1940 in platinum, set with a row of graduated old cut diamonds accented by rose cut diamonds, all totalling 0.8-0.9 carats, with engraved foliate decoration to th

Art Deco diamond set tie pin / bar brooch, a 9ct gold and diamond set stick pin and two pairs of 9ct gold ear studs

* An Art Deco Platinum, Diamond, Onyx and Emerald Bar Brooch, French, containing 133 old European and round single cut diamonds weighing approximately 2.70 carats total, 36 calibre cut onyx, and eight

Art Deco Platinum and Diamond Bar Broochthe shaped bar brooch set with old European and single cut round diamonds weighing approximately 1.33 total carats (H-I color, VS-SI clarity) and with synthetic

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 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.

Old European cut diamonds set in platinum filigree with gold pin back. Approximately 1.5 carat center stone with .75 carat side stones as well as many small diamonds throughout. Dimensions: L 2.75" x

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

AN ART DECO SAPPHIRE AND DIAMOND BAR BROOCH in yellow gold and platinum, the tapering bar set with a floral cluster of diamonds to the centre, flanked by rows of graduated cushion cut blue sapphires,

Art Deco 18 Karat Yellow Gold, Platinum, Diamond and Ruby Bar Brooch Bezel set on the diagonal with four square French cut Diamonds [G/VVS], approximate total weight 2.05 carats, and enhanced with 16

Art Deco Diamond, Emerald, Black Onyx and Platinum Brooch. Set in the center with an approx. .65 carat old European cut diamond, H-I color, VS2 clarity. Accented with approx. 3.50 carat TW old Europea

Sapphire Brooch or Bar Pin. Art Deco Cartier platinum bar pin or brooch comprised of a central onyx openwork frame with (2) sapphire cabochon accents, and (3) stacked bands of pave diamonds; flanked b

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

Item/Description: Exquisite, designer Kenneth J. Lane brooch. Masterfully crafted Art Deco style bar pin. Rhodium plated metal set with a geometric pattern of faux coral and onyx circles, held togethe

French Art Deco Enamel, Diamond, 18k Yellow Gold Bar Brooch. Featuring alternating segments of black and mottled green enamel, accented by rose-cut diamonds, set in an 18k yellow gold bar brooch mount

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

Art Deco Diamond Watch Brooch, Francethe pendant form brooch in a tapered bar and buckle motif suspending a bar form drop with pointed terminals, the whole set with square cut diamonds weighing approx

French Art Deco Carnelian, Black Onyx, Platinum, 14k White Gold Bar Brooch Semi-Mounting. Featuring two carnelian discs measuring approximately 17 mm, accented by rectangular black onyx segments, set

DIAMOND BROOCH, 1930S of bar design in the Art Deco style, centred on a geometric arrangement of millegrain-set circular-cut and baguette diamonds, mounted in platinum and white gold, length 57mm, sta

14KT GOLD DIAMOND BAR BROOCH 14KT GOLD DIAMOND BAR BROOCH in art deco taste, this timeless diamond pin brooch is crafted in 14KT white gold. displaying of geometric art deco patterns set in one round-