Yes, pass!

Your partner will be assuming you have some six or seven points, so you are not worth a jump to five diamonds.  Realising this, a bid of four diamonds would work reasonably well.

But consider the alternative.  Pass, you have two possible tricks of your own and your partner should have strength in spades opposite your singleton and on point count you should be able to defeat three hearts and you might not be able to make game.

The full deal is above, three hearts doubled = 1100.......whilst bidding four diamonds and the bidding continued Pass 4 Spades Pass 5 clubs Pass 5 diamonds All Pass.  Even making with an overtrick only scores 420.  So think about the alternatives before making the 'Obvious' bid.  The first thing to come to mind is not always the best.

Excerpt abbriaviated from The Complete Book of Bols Bridge Tips.

WHERE IS YOUR COMPETITIVE SPIRIT?
Above is a hand submitted by Len Armstrong as an entry for the competition
Win a 'Free' night of Bridge.
If you have a 'good', 'interesting' or 'unusual' hand that you can submit, with the bidding and plan of play etc. that we can put on the Web Site and ask others to submit their solutions for the best result and bidding etc,
we will give a 'Free' night both to the provider of the hand used and the best/nearest solution giver.
Send hands and solutions by email or hand them (legibly written!) to a Committee Member.

NO ONE SEEMED INTERESTED - SO HAVE DISCONTINUED THIS COMPETITION.