A trillion Tanzanite AAA gemstone solitaire finger ring, delicate dimpled textured silver finger band with applied polished gold shoulders and 9ct solid gold rubover bezel setting the gemstone is a double A quality Tanzanite which is a form of Zoisite.  In 1967 beautiful transparent blue-violet crystals of zoisite were found in the Meralani hills in Tanzania hence the name. 

Textured Silver band is 3.5 mm in width 

Tanzanite AAA grade gemstone is a 5mm x 5mm Trillion