So I just bought my AGS 000 .83 H VS2 round. Beautiful idealscope. 1.0 HCA score. 1A aga score. Bought it from Diamond Ideals for 3700.00. Could not have been happier with the price quality or service. Then I had it sent to my girlfriends friend who is a jeweler and he was going to set it in a Tiffany style setting. But they chipped the diamond while setting. They are now trying to give me a .90 H VS2 GIA excellent, but this diamond only scores a 2.7 HCA. Am I over thinking the HCA and it's merits or not? Her jeweler friend says it's a Gia stone but there is nothing wrong with a AGS especially when it comes to the cut right? I loved the first stone. What should I do? Reject the stone they are offering and ask for another? Should I also ask to keep the "chipped stone" in addition to whatever they give me? Thx