A 0.21 ct. or larger asscher, round, square, emerald, cushion or oval shape stone can be set with this ring. Modern Brilliant Cut Emerald Promise Ring, Formal Cushion Cut Diamond Ring With Single Diamond, Asscher Cut Birthstone Ring With Prong Setting, White Gold Emerald Ring Cushion Cut For Formal Occasions, Formal Cushion Cut Emerald Ring In White Gold, Refined Asscher Cut Ring With Center Stone, Classic Emerald Ring With Tension Setting For Formal Events, Refined Asscher Cut Promise Ring, Modern Solitaire Asscher Cut Ring