The creative forward fondly looks back at the quarter-final encounter in Kiev, while he is optimistic about Italy's World Cup chances
The Guangzhou Evergrande attacker netted the decisive spot kick in the quarter-final encounter in Kiev after Ashley Young and Ashley Cole had missed in the shootout and, although Italy ultimately lost the final 4-1 to Spain, Diamanti has nothing but fond memories of the tournament.
"The moment that I remember most fondly is the penalty I scored against England at the European Championships in 2012," Diamanti told Goal.
"That spot kick definitely represents one of the highlights of my career. I don't know if it was the best moment of my career so far, but it was certainly a very important one."
The offensive midfielder then went on to reflect on his debut for the national side, as well as discussing his chances of making the Italy squad for this summer's World Cup.
"The first time I got selected for the national team brought forward some very strong emotions. It was a big step forward in my career.
"I cannot be certain that I will be on the plane to the World Cup, but I will obviously do everything to make sure I make it. You can never be definite of anything in football until it actually happens, though."
The 30-year-old is confident Italy can go all the way in this summer's tournament in Brazil, although he expects a difficult encounter versus England in the group stages.
"I think Italy can win the World Cup," he added.
"It is important to have experience at international level and to approach the game against England with the maximum level of respect, yet without showing fear.
"I expect it to be a fascinating game and will give our all to ensure we win the match."
Italy will also contend with Uruguay and Costa Rica in Group D.
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