I have decided to change my rating because the jeweller making my pendant for me refuses to use the diamonds because they are so bad and I now have to purchase others. I know that some are supposed to be I3 clarity but they are grey and dull and full of huge visible black spots. Surely you should have stated in your auction that they were so bad? In fact unusable in jewellry of any sort? After waiting a week for any comms from you, I was hoping that I had at least made a reasonable purchase.