Helm & Hahn Co. Mid-Century Diamond Onyx 18 Karat White Gold Vintage Ring

Centering an old European cut diamond weighing approximately 0.40 carat - H color with VS2 clarity. Bezel set with a pierced shield shaped surround with additional diamonds bead set throughout. Weighing approximately 0.56 carat total - well matched to center. Accented by calibré cut onyx cabochons channel set at cardinal points. Opaque glossy black in color. With engraved scroll motif shoulders. Stamped for platinum. Fully signed Tiffany & Co.. Circa: 1930's. Ring size: 6 and sizable. Measures North to South 11.0 mm and sits 5.0 mm high. Total weight: 4.2 grams. Stock Number: We-11007 Make a dazzling statement with this Tiffany & Co. Art Deco dinner ring...

Centering two old European cut diamonds weighing approximately 2.00 carats total I color with SI1 clarity - bead east to west in cushion shaped forms With a black enamel halo surroun...

Designed as a pierced geometric motif with central gap Accented by raised squared off platinum terminals Bead set with round brilliant cut diamonds Weighing approximately 0.75 carat ...

Designed as a domed rose gold form centering an arching platinum segment Centering an old European cut diamond weighing approximately 0.90 carat L color with I1 clarity - set in a ra...

Year: 1930s Item Details: Ring Size: 7.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 6.5 grams Center Diamond Details: GIA Report#: 6234063629 Weight: 1.26ct total weigh...

Platinum, Diamond and Onyx Art Deco Style Ring 1940's ring with a bright and shining central European-cut diamond floating in the center, estimated at 0.45carat, collet-set in plat...

Period: Art Deco, 1920 ca. Head length 1.7cm x 1.2cm Size: 6 Weight: 4.05 gr. The ring has an oval flat onyx, in the center of which you find a round diamond cut old about 1 ct. The...

A fabulous onyx and diamond ring from the Art Deco (ca1920s) era! Crafted in 14k white gold, this striking piece features a navette-style onyx centerpiece. The onyx stone is held wit...