Oh, dear God. Why on earth would anyone want a replica of the Ring of Power for a wedding band?! I've thought long and hard about the engraving (come on, sing along, you know the words):
One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them.™
and it seems to me that this would only be appropriate for polygamous cult leaders.
(thanks to Veiled Conceit. We love you forever!)