This beautiful engagement ring features a beautiful lab grown alexandrite center stone. This stunning gem produces a lovely range of colors - blue and purple, and even the occasional subtle hint of green, depending on what spectrum of light it is in Ring details--Center Stone is a 8x6mm Pear Cut Lab Treated Alexandrite. Approx 1.62ct.-Alexandrite Color: Blue/Purple (Occasional Hints of Green)-Halo surrounding the stones are Natural Confilict Free Diamonds.,Approx 0.25ct-Band Width: approx1.3mm--1.4mm (Bottom)-Material :925 sterling silver ,Solid 14k Rose, Yellow or White Gold/Platinum.