Prazana Lab-Grown Diamonds 0.63ct white round lab-grown diamond center stone with 0.70ctw round white lab-grown diamond, rhodium over sterling silver ring. Measures approximately 5/8"L x 3/16"W and is not sizeable. G-H color, SI clarity minimum.,Prazana Lab-Grown Diamonds 0.63ct white round lab-grown diamond center stone with 0.70ctw round