I bid on a diamond on ebay and got a great deal for a 2.01. The certificate says GSL but I am a little iffy now. The seller says he will refund my money if its not what he says and paypal says the purchase is covered. the certificate says its a G Si1. I have pics of the diamond he took. Can anyone help me figuring out if this is legit? I''m not sure if you can PM here, or someone can post there email that is an expert on these things. Anny help would be appreciated!