I hope you've got a diamond

[rod]

I picked up this one at the club yesterday. Matchpoints, none vulnerable, partner opens 1♥ and RHO overcalls 1♠.

♠ 753
♥ 10
♦ AKQJ108752
♣ --

I called 2♦ and it went pass, 2♥ by partner, 3♣ by RHO.

You're not playing any fancy conventions. What would you do?

I tried 3♠ hoping partner could call 3NT, which he did. The full deal:

♠ 753
♥ 10
♦ AKQJ108752
♣ --

♠ KQ1086
♥ Q92
♦ --
♣ AKJ94

♠ 42
♥ 654
♦ 643
♣ Q8532

♠ AJ9
♥ AKJ873
♦ 9
♣ 1076

West led ♠K though a high club would have been wiser. When the smoke cleared partner had all 13 tricks for 86% of the matchpoints (West was squeezed in the major suits). 13 tricks are always available in a diamond contract but nobody found slam. Top score went to 5♦ doubled with two overtricks.