Sophie’s boyfriend Aaron Armstrong confirmed the former reality star’s death on Facebook, saying he was “absolutely devastated”, with friends offering their condolences.
Posting a picture of the two of them together, he wrote: “I will never forget that smile I love you so so much baby your my world forever ever and always.”
Northumbria Police said: “At about 8.27pm yesterday (June 20) police attended a property in Medburn, Ponteland, where sadly a 32-year-old woman was found deceased.
“There are not believed to be any suspicious circumstances surrounding her death. A report will now be prepared for the coroner.”
The day before she died, Gradon posted a video on social media of her boyfriend dancing with a dog, describing her other half as the love of her life and “the one”.
Three days prior to that, she paid tribute on Instagram to nightclub boss Paul Burns – known as Mr Newcastle – who died at the aged of 37 earlier this month.
She wrote: “Today was all about you sweetheart. What an amazing send off for our Mr Newcastle @mrpaulburns1 Thank you for being there when you recognised I needed someone, you are a true saint. I only wish I had got to know you better. All my love and thoughts with your nearest and dearest.
“@vickypattison you made us laugh & cry all at the same time… #viviennewestwood @emmaenglish_ you told us about his selflessness & the size of his heart @christianotup and @andysr79you gave us insight into his love for his work & all his friends in this town @rosiemayedge you gave us a collection of memories to treasure forever. I’ve never felt so emotional yet so uplifted in my life. #paulburns #mrnewcastle #restinpeace.”
The TV celebrity from Newcastle appeared in the second series of Love Island in 2016 and was part of the ITV2 dating show’s first same-sex couple.
She was crowned Miss Great Britain in 2009.
The competition tweeted: “Shocked beyond belief!!! RIP @sophiegradon sending all our love to Sophie’s family at this incredibly sad time 😔xx
Her Love Island co-star Katie Salmon said she was “heartbroken” and wrote: “Your smile will be remembered forever.”
Olivia Buckland, who appeared in Love Island with Gradon, tweeted: “Awful awful news this morning. I am gutted. I am so sorry the world failed you. You were such an intricate, creative, intelligent soul. Words fail me.”
In a further tweet, she wrote: “You helped us through so much. Your smile was one in a million. The world failed. I send all my love and my thoughts to you today. To your family and your loved ones. I cannot work out what to say. RIP you beautiful beautiful woman. I’m so lucky to have met you. #stayshapey.”
Alex Bowen, who also appeared in Love Island in 2016, wrote: “We had lots of little chats and so many laughs. you were the the shoulder to cry on and a beautiful person with a beautiful soul. Shine bright in that sky Sophie gradon.”