As a documentary maker, Lemuel Lyes, 42, is used to being behind a TV camera, but it was watching BAFTA-winning
sitcom Detectorists that inspired him to take up metal detecting.
Mr Lyes began the hobby at the start of 2024 - before finding the "once in a life time" piece of potential treasure exactly a month later.
He said he was "bewildered" when he found the gold penannular ring in a field near St Columb Major, adding: "I didn't want to get my hopes up... but when I saw other examples online I realised it really was something very, very special".
The rings were "not common finds, this is possibly one of the first to be found in Cornwall if not the first," he said.