This one, on the other hand, is a bit more cheerful. It was written in honor of my wife's birthday: see if you can guess the answer.
Fit for all praise / Prince's best gem;
Got in exchange / Gold will hold it,
Bought not, nor reaved / But freely found.
Ring-gift, precious / Rightly desired.
Bounty it grants / Best of all wealth;
Lacking its warmth / Would man's hope fail.
Kings that own none / Call them beggars!
Beggars with it? / Bright are their days.
Not to be sold / Sure way to loss,
Shadow it lacks / Still it can die.
Say I its worth; / Speak you its name!
(Answer below the fold)