Hey, bought a diamond ring the other day. Was told it would be ceritifed and come with all the details when I put the deposit down, but since I've got the diamond it's been certified by WGI, not GIA as I assumed it would be (yes, I know I shouldn't assume things). Has anyone had any experience with WGI ceritifcations or have any idea how accurate it is/whether there's a chance it could be overgraded? Is it worth getting the diamond sent off to GIA to check?