BobbyJ, just in case you're wondering, your feelings are completely normal (IMO). I think the main feelings I had the day mine was done were relief ('well, sh-t, THAT part is done') and stunned disbelief (THAT's it?).
Ah, the ring. I still have mine sitting on my dresser. It wasn't really from him, though. I went and found it and bought it. It's beautiful. A 1920's simple white gold antique with a floral design. Some days I want to chuck it into the inlet, but I bought it, it's mine. I may try to come up with a 'ceremony' to rechristen it as a symbol as a commitment to myself and wear it on my other hand. (kind of what it was anyway).
Anyway, time enough to deal with that later. Take a (short or long) while to adjust. Take gentle care of yourself.