I love Ikes. Affordable, but great in the hand appeal with both size, weight and a great reverse design (IMHO). Congrats.
It's really nice with the luster and strike, but I don't think it would grade higher than a 63. That's fine with me because I got it so cheap!
I don't really collect these, but are you referring to the earth on the reverse? If so, I'll look at my proof and see how it compares.