I picked up this big (almost 2") onion at one of the rare local auctions offering marbles. It was so beat up I couldn't even tell it was an onion. Sent it off to Leroy who did his usual magic. Yes, it's lost the pontils, but now I can see the deep lobes filled with mica. Worth it? Absolutely.
On the other hand, if I were to have this 1" Leighton-type polished, I'd lose the incredible colors and oxblood on the surface, so it remains battered and still appreciated.