Everton have tied down young defender Stones to a new five-year contract after his breakthrough season at Goodison Park.
"I am over the moon," Stones told the club's official website. "It's just been such a great last season and to get pen to paper on a new deal is a dream come true.
"The last 12 months have been so enjoyable thanks to the faith that the manager has shown in me and all the players. What we achieved was unbelievable. It was a very memorable season and hopefully there's more to come."
Everton boss Roberto Martinez said: "It is an important signing for the club and a really good reward for a young footballer with a fantastic future.
"He had an excellent season in 2013-14 and it's really good news all round.
"It is very important that we continue to let our youngsters continue to develop into bigger roles."
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