Art Deco Solitaire Diamond Engagement Ring in Platinum.  This platinum antique Art Deco diamond solitaire engagement ring features a .80 carat old European cut diamond.  The round center diamond is set in a six (6) prong basket with platinum filigree wire work visible from the gallery view.  The shank of the ring features a relief cut  platinum work in the shape of elongated rectangles creating detail and interest.