Full Tilt No-Limit Hold'em, $0.10 BB (7 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

MP1 ($1.85)
MP2 ($6.41)
CO ($2.30)
Button ($1.85)
SB ($10.85)
BB ($1.70)
jedwards24200 (UTG) ($9.81)

Preflop: jedwards24200 is UTG with J, J
jedwards24200 bets $0.30, 1 fold, MP2 raises to $0.70, 4 folds, jedwards24200 calls $0.40

Flop: ($1.55) 3, 6, 7 (2 players)
jedwards24200 bets $1.55, MP2 raises to $5.71 (All-In), jedwards24200 calls $4.16

Turn: ($12.97) K (2 players, 1 all-in)

River: ($12.97) 4 (2 players, 1 all-in)

Total pot: $12.97 | Rake: $0.86

I think you're probably ahead about 50% of the time with that call. Even though you may put him on a bigger pair, some of the time players are making that same move with 88, 99, and 1010. AK/AQ diamonds is also playing that the same way a percentage of the time.

I don't think you're wrong to call, if he has QQ+ it's a cooler. If he has 1010- you've got him smashed. If he has suited overs you're flipping.

You're not wrong to fold either. You're certainly not getting the right price on your money to gamble unless you can put him on a hand you can beat.