I bagged myself a rare 1860 1/2d and sent it to them, checking their valuations before it was graded their highest grade back then was valued at £750, when mine came back as their finest graded the valuations of the same coin dropped across the board, their previous finest known had dropped to around £400, bet the owner was a tad miffed, their value has gone back up now to around £550-£575 I think, it's all meaningless, it'll be worth what someone will pay.