Diamond Antique Engagement Ring Art Deco GeometricThis gorgeous diamond antique engagement ring has an Art Deco geometric style. The . 78 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