Original Art Deco Ruby Platinum 18k Yellow Gold Ring. This is a beautiful original art deco ring c.1930. The ring is set with 1 oval cut ruby in platinum with 18k yellow gold. The gorgeous ruby is estimate to be 1.05 carats. The ruby is a natural gem quality with very nice intense red color and clarity. The ring is in excellent condition. Ring Size 5.5, Weight 3 grams.