We designed this 3.00cttw black diamond eternity ring with round brilliant cut white and black diamonds. White and black diamonds are both birthstones for the month of April. This ring measures approximately 3.5mm wide and would make a lovely gift for a new mother of a child that was born in the fourth month of the year. The sparkling, white diamonds have F-G color and VS clarity, which are securely held into place by the shared prong setting in the precious metal of your choice (14 karat gold, 18 karat gold, or platinum).