No apologies required - you preserved the socket, which would otherwise have eroded or filled with grass and have been lost forever, - the very socket that held the vital information on the position the stone was in. And you preserved it in a perfect fashion, better than any other - you put a stone of the exact same shape into it.
Never apologise, always look affronted that anyone should dare to question anything you do!
;)

(How are you 'chops?)