Because he doesn't really love you unless he gives you an ALL-DIAMOND RING, like this one from Shawish Jewelers of Geneva, Switzerland.
When you wish upon a ring, makes no difference who you... dammit, that doesn't rhyme well!
Redditor laporkenstein forged his own wedding ring from a chunk of meteorite! Check out the extensive gallery of the process here!
Wonder what his wife will be wearing? I mean, diamonds are sort of anticlimactic at this point...
I'm sure they have both Chuck Berry and Pulp Fiction in the 24th century, and will totally get that reference.
And nary a portal shall ever separate them.