You heard it here, ‘D’ is for Deco. In this case D is also for the color of this diamond. An old cut marquis with all of her charm sits in this perfectly situated Art Deco mounting. Just shy of 1 ct and perfect color, ‘D’ to be specific this ring is absolute perfection from its central stone to the bezel set baguettes and knife edge band. C. 1930 Platinum Art Deco ring featuring a GIA certified .95 carat Marquis diamond of D color and VVS2 clarity. This ring is presently a finger size 3.75 and can be resized.