Tiffany & Co Oval Cut Diamond & Black Onyx Ring 1754 21 carat EGL certified emerald

21 carat EGL certified emerald cut diamond with H-I color and VS1 clarity

The opals are particularly vibrant

Antique Art Deco engagement ring made in platinum and centered with an approximately 1

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

Antique Edwardian eternity band with 26 old European-cut diamonds weighing approximately 0

Tiffany & Co Oval Cut Diamond & Black Onyx Ring 1754 21 carat EGL certified emeraldArt 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