A 0.21 ct. or larger asscher, round, square, emerald, cushion or oval shape stone can be set with this ring. Ring With Square Stone, Emerald Ring With Prong Setting For Promise, Asscher Cut, Timeless Solitaire Asscher Cut Ring, Timeless Asscher Cut Emerald Ring, Timeless Asscher Cut Solitaire Ring, Luxury Asscher Cut Solitaire Ring, Timeless Asscher Cut Ring With Prong Setting, Classic Princess Cut Emerald Ring With Diamond Detail, Refined Asscher Cut Promise Ring