This gorgeous antique art deco engagement ring features a glittering .78 carat round brilliant cut diamond.  The center diamond is held in place by four corner prongs that provide a delicate square frame.  The center stone sits on a bed of twenty-one (21) single cut diamonds that provide an ample of amount of additional sparkle.  The platinum band has a slight knife edge which also lends to the angular appearance of this late art deco stunner.  A truly magnificent engagement ring!