Original Art Deco Platinum Diamond 18K Yellow Gold Ring

This is a beautiful original art deco ring set with 3 old mine cuts and 30 rose cut diamonds in platinum with an 18K gold ring shank. Shank marked 18K and 750. The largest diamond in the center measures .45 carats total weight .90 carats they average I color VS-2 clarity. Ring Size 9 inquire about ring sizing, Weight 4.5 grams, Excellent condition, Face of the ring measures 19mm by 9mm