SIGNED TIFFANY & CO. ART DECO PLATINUM, DIAMOND AND SAPPHIRE LOW DOME RING, early 20th century.

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

TIFFANY & CO. PLATINUM DIAMOND & SAPPHIRE RINGAmerican, late 20th- early 21st century. A platinum band channel set with alternating diamond and sapphire, size 6.25. Weighing 6 grams

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 Style Platinum, Diamond, and Sapphire Ring, Tiffany & Co. the octagonal shaped mount centering on a round brilliant cut diamond with stated weight of 1.75 carats (G color, VS1 clarity) bezel

TIFFANY & CO. PLATINUM AND DIAMOND RINGAmerican, late 20th- early 21st century, platinum. Twenty-two (22), approx. 2.87mm each and 1.76 total carat weight, channel set diamonds to band, marked to inte

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

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

PAIR TIFFANY & CO. ART DECO STYLE TOURMALINE/DIAMOND EARRINGS, SIGNED TIFFANY & CO. 750, 20TH C.

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

AN ART DECO RUBY AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, the rectangular face set with a step cut ruby accented by single cut diamonds, stamped 18ct Plat, size M /

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

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

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

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

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

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

Tiffany & Co. Pink sapphire and diamond ring Set with alternating circular-cut pink sapphires and round brilliant-cut diamonds Platinum Signed Tiffany & Co. Ring size 3 ½; Gross weight 1.9

Tiffany & Co Art Deco Platinum Diamond and Sapphire Ladies Wrist Watch. Watch is set with round and marquis cut diamonds and square cut sapphires in a platinum case with a manual-wind movement and saf

Metal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 1.20ctw, Sapphires (few chipped stones) Measurements : Ring size 8, top is 25mm wide Marked: : Tested plat Weight

Metal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 0.24ctw, Sapphires Measurements : Ring size 3, top is 9.5 x 9.5mm Marked: : plat (polished off), 9-213 Weight:

centering one round cabochon cut star sapphire weighing approximately 5.8 carats; and 35 early round full cut, single cut, and Swiss cut diamonds [G-H/VS2-SI1] weighing approximately 0.90 carats total

Art Deco platinum ring by Tiffany & Co. Set with three diamonds approx. 0.20ctw. Measures - size 5 1/2, ring top is 7.2mm wide. Weight 8.5 grams. Marked Tiffany & Co.

Metal : 14k Gold shank/ Platinum top Designer : Not Signed Gemstone : Diamonds approx. 0.75-0.80ctw, Sapphires Measurements : Ring size 6, top is 23mm x 18mm Marked: : Plat, 14k

United States; 20th century. 1920's Art deco 14K white gold ladies cocktail ring decorated with 3 round cut diamonds and 2 sapphires. Dimensions Size 6 1/2