The singer was said to have been spotted wearing a diamond band at a recent Robbie Williams concert. However, the image from a fan's Twitter and published by the Daily Mail, Glamour and Look has now been revealed to be two years old and taken at Deutscher Musikpreis in 2011.
The Daily Mail has now removed its story speculating that Adele had married partner Konecki in private.
Oscar winner Adele was recently rumoured to be planning a 1950s-style wedding with Konecki later this month.
A source said: "It's been one of the best years of Adele's life and to get married is the most amazing way to round it off. She's never been so in love.
"She's planning a modest do at a local church in a small village near their home in Sussex. The reception will just be at their house - it's all very low-key."
The pair have been dating since 2011, while they welcomed their first child in October last year. Konecki also has a 5-year-old daughter from a previous marriage.
Adele was immortalised in a waxwork at Madame Tussauds last week in London and Amsterdam.