I want to remove my gold tooth: will my teeth gain its original size? (Photo)

HI:In order to get the original size of your tooth you need to place another crown once you remove the gold crown.Best,Dr. Maddahi

Hello!
To be able to place a crown, some of your tooth is reshaped, this means that your tooth no longer has its original size on its own, if or when you remove the gold crown, it will need to be replaced by a porcelain crown so you can have it with the original size and color. 
Hope this helps, good luck