Hi Leonid,It's Paul here. Two questions for you - I am just wrapping up the purchase of my new Superbcert diamond that I am purchasing from one of your recommended on-line vendors. The diamond is approx. 1 ct, E, IF stone, just to remind you what I purchased. I will be receiving the stone here shortly, and I was wondering if you think it is really necessary for me to have an independent appraiser look at. If the answer is yes, could you please recommend someone? I am in Sacramento, Ca. I am leaning towards having it appraised.Second question, I am having the diamond set by a third party. Do I need to have them sign something which states they accept responsbility if the diamond is damaged during the process of having the stone set? Or is the liability on the part of the jeweler assumed, and from a legal standpoint, a secondary document not needed?Thank you for your response. I just don't want to see my diamond damaged. Presumably, stones are not damaged during the setting process?- Paul