Tiffany & Co Oval Cut Diamond & Black Onyx Ring 1754 French Art Deco engagement ring

French Art Deco engagement ring set with a step emerald-cut diamond weighing approximately 1

Geometric shapes and attention to detail make this ring a beautiful example of Art Deco craftsmanship

Accented with 16 old European cut diamonds

Circa 1929

Tiffany & Co Oval Cut Diamond & Black Onyx Ring 1754 French Art Deco engagement ringArt Deco Tiffany & Co ring centering on an oval cut diamond weighing approximately 0. 90 carat with an EGL certificate stating the diamond is E F color VS1 clarity, surrounded by 8 fancy cut black onyx and 20 single cut diamonds. Set in platinum. Signed Tiffany & Co. Circa 1920. Onyx and diamond rings are synonymous with the Art Deco period. This is vintage Tiffany at it's finest. The profile elongates the hand. Diamond and gold mining has caused