Large exceptional Art Deco old European cut diamond engagement ring set in platinum. The fine old European cut diamond is K in color and VS1 in clarity and has a GIA report #5172613450. The handmade ring has beautiful filigree and miligrain design and has 34 side old cut diamonds weighing approximately 0.51cttw. Circa 1920s. Ring size is 8 1/4 and can be sized.