I purchased this set as a graduation gift for my 18 year old great niece.  For the cost, I was impressed.  The setting is gorgeous.  The pearls were uniform in color and shape.  Did not see any imperfections.  The backs are a negative in that they are not big enough to support the size of the earring.  The post hole on one of the backs was too big and wouldn't stay on.  I simply substitued larger backs which are discs and grip the posts tightly.  My great niece loves them.