ART DECO DIAMOND RING, EARLY 20TH CENTURY in platinum,

Art Deco Sapphire & Diamond Ring in Platinum , Early 20th century, platinum, American. Art Deco ring set with .60cttw diamonds I-G color and SI2-SI1 clarity and .50 cttw blue sapphires. Hallmark: Plat

Art Deco Diamond Filigree Ring, Early 20th century, Art Deco ring in platinum over 18k set with .17cttw diamonds (approximately H color and SI1 clarity). Hallmarked with Austrian assay mark for 14k. W

SIGNED TIFFANY & CO. ART DECO PLATINUM, DIAMOND AND SAPPHIRE LOW DOME RING, early 20th century. Old European cut round diamond weighing approx 1.00 ct. Centered by two lines of six calibré-cut sapp

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 CEYLON NO HEAT SAPPHIRE, DIAMOND AND PEARL NECKLACE, EARLY 20TH CENTURY in platinum and yellow gold, set throughout with nine oval cut blue sapphires all totalling approximately 16.90

EARLY 20TH C ART DECO DIAMOND SOLITAIRE RING: 18K pierced white gold ring centers an approx. .28 Old European cut diamond of VS clarity and near colorless color. Size 6.

Early 20th century. Set in a 14k white gold Tiffany Style setting, the pear shape diamond measures 9.46 x 6.35 x 4.55 mm with color grade of I-J and is a size 7. Accompanied by two wedding bands of th

This is an antique Continental European ladies wristwatch dating to the early 20th century. Rendered in fine platinum, this Art Deco watch is studded with full and single cut diamonds. VS clarity and

Set in platinum. From the first half of the 20th century, with a central sapphire surrounded by small sapphires and diamonds, unmarked. Dimensions: The central stone is approximately 0.75 carats, the

An antique early 20th-century French Art Deco 14K white gold, sapphire, and diamonds two-piece jewelry set, a pair of drop earrings and a cocktail ring. The ring is set with an oval sapphire stone enc

Item/Description: This exquisite antique set came to us from the same Estate. Early 20th Century. Transitional period: Art Nouveau- Art Deco. Filigree work. Panel bracelet set with 15 sparkly white di

Likely Mid 20th Century. Art Deco style, American. A square cut natural green emerald (approximately .75 CT) flanked by two round brilliant cut diamonds (each approx .3 CT) surrounded by sixteen round

80% Platinum Art Nouveau style floral ring with one larger center diamond and ten surrounding diamonds. Produced by the William Kinscherf Company of New York City, ca. early - mid 20th century. Americ

DESCRIPTION: Platinum Art Deco ring with oval inset red tourmaline flanked by six accenting round diamonds. Marked "Plat" CIRCA: Early 20th Cent. ORIGIN: Continental DIMENSIONS: Size: 6.5" (Total Weig

American, early 20th century. Art Nouveau filigree platinum (tested) ring with .30 ct brilliant cut center diamond surrounded by smaller diamonds in flower motif. Size 5.

Central OEC diamond, .72 ct. by formula, framed by diamond halo in platinum head, surrounding diamonds, approx. .70 ct. TW, on yellow gold hoop. Early 20th c. Unmarked. At least 14k yg. Size 6. 2.0 dw

AN ART DECO RUBY AND DIAMOND BRACELET, EARLY 20TH CENTURY set throughout with pairs of step cut rubies accented by single cut and rose cut diamonds, unmarked, 18.5cm, 17.3g.

NO RESERVE - AN ANTIQUE GARNET INTAGLIO AND DIAMOND SEAL / SIGNET RING, EARLY 20TH CENTURY in platinum, set with a cushion cut garnet, the table reverse carved in detail to depict a coat of arms, acce

A diamond engagement ring. Early 20th century. Set in platinum. Approx. 3/4 carat t.w.Size 6.5

Art Deco Diamond Ring 14k , 1st half 20th century, 14k, Possibly Swiss or German. 14k white gold Art Deco ring set with .60 cttw diamonds (approximately I color and SI1-2 clarity). Hallmarked 585 for

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

AN ART DECO ROCK CRYSTAL AND DIAMOND BRACELET, EARLY 20TH CENTURY comprising a single row of ten alternating round and oval polished rock crystal discs, connected by bevelled motifs set with single cu

A FINE ANTIQUE DIAMOND DRESS RING, EARLY 20TH CENTURY in yellow gold and platinum, the scrolling face set with old cut diamonds accented by rose cut diamonds, no assay marks, size J / 4.5, 3.6g.

AN ANTIQUE OPAL AND DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with three cabochon opals, accented by round cut diamonds, stamped 18CT & PT, size L / 5.75, 2.7g.