I am new to the whole diamond world. Please help me clear my doubt. My boyfriend gifted me a 0.53 carat diamond, E color, VS1 clarity and very good cut, in a 18K gold band from Blue Nile for my birthday. It cost him $1500 and the appraisal from Blue Nile is around $2300. My question is do I need to go to an independent appraiser to get it appraised again? I have read some the forums in Price Scope and everyone seems to get their rings appraised again. Can''t I trust the diamond and band quality from Blue Nile? Also, for insurance purposes can''t I use the appraisal document provided by Blue Nile? Do help me. Thanks in advance.