An Art Deco diamond and onyx geometric necklace

ART DECO STYLE ONYX, DIAMOND AND GOLD NECKLACE with a diamond shaped onyx pendant, with a conforming geometric chain of 14KT gold, onyx and diamond, inscribed JRS on pendant, stamped twice with 14KT,

Platinum geometric bow pin featuring diamonds weighing approx. 3.00 ctw with an average color grade of G-H and an average clarity grade of VS, bead set with French cut black onyx channel set in design

Art Deco Diamond by the Yard & Onyx Necklace with 10 Full Cut diamonds Approx 1.50 CT. Color: H. Clarity VS1-SI1. Chain Length: 37". Weight: 7.7g.

Art Deco onyx & diamond watch pendant with necklace. 28"log chain.

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

Art Deco 14k Gold onyx and diamond necklace16" long, 3.5 grams gross weight

VAN CLEEF & ARPELS, AN EXQUISITE ART DECO ONYX AND DIAMOND FOB WATCH PENDANT NECKLACE, EARLY 20TH CENTURY in platinum, the hexagonal face with stylised Arabic numerals, within a border of rose cut

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 Possibly Diamond, Sterling Silver, Marcasite, Pos Onyx and mother of pearl necklace C1930’s. Some stones on Presidium gem tester test possibly diamond. An Art Deco sterling marcasite and fi

Vintage Art Deco Necklace w Enamel & Paste. Signed ART DECO. Faux diamond and faux onyx enamel. Chain measures 22 inches in length.

Vintage Art Deco Necklace w Enamel & Paste. Signed ART DECO. Faux diamond and faux onyx enamel. Chain measures 22 inches in length.

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

ART DECO DIAMOND BROOCH/CLASP, CIRCA 1935, AND TRIPLE ROW CULTURED PEARL NECKLACE The openwork geometric plaque set throughout with cushion-shaped and old brilliant diamonds, with step and baguette-cu

Contemporary Art Deco style drop dangle earrings. Crafted of solid 18k white gold. Features pink angel skin coral and black onyx in a geometric pear shape design. Knot style carved links connecting a

Signed Van Cleef & Arpels Egyptian Revival/Art Deco style 18K yellow gold necklace/open-end "choker" love birds, green chrysoprase, coral cabochon, lapis, black onyx & diamonds 53.15 dwt approx. & app

Erté, French (1892–1990) Vintage Art Deco style Tapered Baguette Cut Multi-color Gemstone, Round Cut Diamond, Carved Mother of Pearl, Carved Black Onyx and 14 Karat Yellow Gold Pendant Neckl

ART DECO STERLING AND ONYX (2 PC.) SET: necklace w/matching earrings (pierced). Round onyx discs set in sterling w/faux diamonds. Necklace: 19.50''L. Earrings: 1.25''L. Total weight: 0.3 ozt.

14k White Gold and Diamond Brooch Art Deco style having approximately 4.00 carats of round, trillion and baguette cut diamonds set in geometric patterns, (2) bails for hanging on a necklace; baguettes

A unqiue .950 Platinum Diamond pendant which is also a brooch. This pendant/brooch has a total diamond weight: 9.90cttw. A diamonds are set in prongs and channel setting style. This beautiful pendant/

ART DECO DIAMOND, ONYX AND ENAMEL PENDANT, EARLY 20TH CENTURY the pendant of tapering design, set with rose cut diamonds accented by polished pieces of black onyx and bands of black enamel, suspending

Vintage Art Deco Gold & Silver Pin holding a pair of removable Clips formed as scrolls & flowers with diamonds and onyx & coral highlights. Total weight 33.61 grams. Width assembled on pin frame 2 1/4

Beautiful 18K W/G art deco diamond necklace (15.8"L) set with approx. 165 brilliant cut excellent quality diamonds, all diamonds in VS and G/H quality, total diamond wt. approx. 6.0ct, wt. 33gm

Circa 1930 Art Deco line bracelet crafted in platinum over 14k gold with approximately 1 carat of transitional cut diamonds. Signed makers mark, Allsopp and Allsopp. Excellent condition. Measures 6 3/