This set was given as a gift from my children to their mom.  The citrine stone has a large crack/chip in the back that is magnified when looking through the front.  This ruins the piece!  Where is the quality control?  When this stone was set, what was the jeweler thinking?  As soon as you look at it your eyes are drawn to the defect.  Not Good!  Now the problem is ours, it seems we cannot echange just one piece of this set.  We have to send the entire set back and hope we recieve a quality set in return.  Some may think this is harsh, but this is not some machine made piece.  A person held this in their hand, saw the defect, and shipped it anyway!  Shame on you Amazon for letting defective jewerly be sold from your own collection, and bringing sadness to my children!