The pageant came after it was revealed that 2016 contestant Zara Holland was stripped of her Miss Great Britain title, after getting intimate with co-star Alex Bowen.
Cara de la Hoyde, who won the series with Nathan Massey, wrote on Twitter: "Such a bad day my heart is broken & goes out to the very one effected". "A report will now be prepared for the coroner". You were such an intricate, creative, intelligent soul.
'The world has failed you attractive.
Following the news, a spokesman for ITV said today: 'The whole ITV2 and Love Island team are profoundly saddened to hear the news about Sophie, and our deepest sympathies and thoughts go to her family and friends'.
Olivia Buckland, a former "Love Island" contestant, tweeted: "Awful very bad news this morning".
Speaking to the Love Island boys, she said: "Life shouldn't be about judging one another".
"I'm heartbroken for you Soph to have felt this pain". I can not work out what to say.
"We had lots of little chats and so many laughs. you were the the shoulder to cry on and a attractive person with a lovely soul. She was one in a million and I will always remember that speech she did on love island about women and empowering one another".
Nathan Henry tweeted: "Rest in peace you handsome little angel, the heavens are blessed with a handsome smile".
"I urge everyone to be kind to every person they meet and speak with on social media and in person a simple smile, a simple nice comment can make a difference".
While another added: "Tonight's episode should be cancelled in memory of Sophie Gradon". The series 2 contestant died this week aged 32.
She continued: "A young woman who hasn't harmed anyone but a woman who has faced a torrent of judgemental and close minded opinions since leaving Love Island".