Art Deco 2.30 Carat Old European Cut Diamond & Black Onyx Ring 1623 00 carat old European-cut diamond

00 carat old European-cut diamond with GIA certificate stating the diamond is J color/VVS2 clarity

31 carat old European cut diamond with J color and VS2 clarity

A truly charming ring with a simple gold band

Signed Cartier MTG

16 carat old European-cut diamond with GIA certificate stating the diamond is K color/VS1 clarity

Art Deco 2.30 Carat Old European Cut Diamond & Black Onyx Ring 1623 00 carat old European-cut diamondArt Deco diamond engagement ring collet set with a 2. 30 carat old European cut diamond with GIA certificate stating the diamond is J color, SI2 clarity. Within an independent surround frame of alternating diamonds and black onyx. Set in platinum. Circa 1920. Black onyx makes this ring extra special and creates contrast for the large center diamond. Diamond and gold mining has caused devastation in areas such as Africa, wreaking havoc on delicate