arrived on the set of Glee
Thursday minus one special accessory – her sparkling engagement ring.
Her appearance without the bling came one day after the Glee
starlet's fiancé, rapper Big Sean, announced in a statement to PEOPLE that he was calling off their engagement, noting it was a "difficult decision."
"The recent rumors and accusations reported by so-called or fake sources are simply untrue," Big Sean said through his rep. "Sean wishes Naya nothing but the best and it is still his hope that they can continue to work through their issues privately. We will not be commenting again on this matter."
, who met on Twitter, began dating in 2013. They confirmed their engagement
Since then, their relationship seemed tight as they professed their love
publicly and planned their wedding together.