An Art Deco diamond and black chalcedony brooch

An Art Deco diamond and black chalcedony ringdesigned as an alternating pattern of rose-cut diamonds and chalcedony panels, in platinum on fourteen karat gold hoop.Property from the Estate of Sally Ka

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

An Art Deco Rock Crystal & Diamond Pendant & a Victorian Chalcedony Brooch. Filigree pendant, c. 1925, centered by carved rock crystal and single diamond hung from a 14 kt white gold necklace, togethe

Vintage handmade Art Deco period Platinum and 18K Gold "Bar" brooch with black enamel, stamped "CDP Inc. France". A double row of (32) Round Brilliant Cut Diamonds, total weight 1.50ct, Clarity VS1, C

ART DECO, BLACK OPAL AND DIAMOND BROOCH Containing one oval cabochon black opal measuring approximately 19.85 x 17.10 x 5.85 mm and 18 old mine cut diamonds weighing approximately 0.80 carat total. Mo

Black, Starr & Frost Art Deco diamond brooch Set with old European-cut diamonds Platinum Signed B.S & F 2 x 0.125 in; Gross weight 5.9 dwts

Platinum Art Deco brooch with black onyx and diamond bow brooch, 2 in. L, 9 grams

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

A French Art Deco period 18K yellow gold circular brooch with black enamel inlay and diamond accents on a gold faux-crocodile skin ground, with French maker's mark " FP" or "PP"? In two places and Fre

BOUCHERON, AN EXCEPTIONAL ANTIQUE ART DECO DIAMOND AND ENAMEL BROOCH in platinum and 18ct white gold, the geometric body set with old cut diamonds within two octagonal borders of black enamel, the pri

AN ART DECO DIAMOND, ROCK CRYSTAL AND ENAMEL BROOCH the rectangular plaque with pierced diamond-set leaves, spaced by frosted rock crystal and diamond panels, between black enamel and diamond borders.

Erte (Romain De Tirtoff, Russian/French, 1892-1990), Art Deco Letter B limited edition brooch, comprised of 14K yellow gold, diamonds and black onyx. Numbered 105/1000. Certificate of authenticity inc

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.

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.

Art Deco style black onyx, 14K gold, ruby & diamond brooch with applied carved opal fish and conch shell. Measures 1.75" x 1.13".

ART-DECO JADE, ENAMEL AND DIAMOND BROOCH,High carat gold.Carved green jade center plaque.The surmount with black and red enamel, in good condition.Accentuated with diamonds.W. 5.2 cm.8.4 grams.

Diamond Brooch. Art Deco 14kt yellow gold brooch displaying a central carved jade plaque with a surround of red and black enamel work and (4) single cut diamonds. Stamped, "14k" verso. From

ART DECO ROCK CRYSTAL, ENAMEL AND DIAMOND BROOCH, CIRCA 1925 Of geometric design, the openwork square rock crystal plaque accented by black enamel bands and single-cut diamonds, between pierced, simil

AN ART DECO STYLE CORAL, ENAMEL AND DIAMOND BROOCH, two oval pink-orange corals tied by a bar and accented with black enamel and milgrain round brilliant-cut diamonds. Stated total diamond weight 0.20

DESCRIPTION: An Art Deco Pin Brooch comprised of an 18k yellow gold foundations, inlaid with black Onyx, a platinum setting inset with Diamonds and a final Ruby accent. Stamped along the "750" Total W

Ladies 18K white gold art deco brooch or hair ornament featuring 218 diamonds of several cuts (round brilliant, single cut, marquise, and baguette) approximately 9.38 carats, Clarity-SI1, Color-G. The

IMPRESSIVE ART DECO DIAMOND BROOCH. set with round and pear shaped diamonds totalling approx 8.50 ct. stunning piece. L: 4 cm. W: 6 cm. 23.7 grams.

Art Deco Diamond, Black Onyx, Platinum Bracelet The bracelet features transitional-cut diamonds weighing a total of approximately 4.50 carats, enhanced by calibré-cut black onyx, set in platinu

Ladies platinum Art Deco brooch featuring an old mine cut diamond approximately 0.56 carats, Clarity-SI1, Color-H, accented by 72 round brilliant diamonds approximately 2.20 carats, Clarity-VS2, Color