Prince Charles has given his new grandson's name the royal seal of approval, describing George as a "very good name" but adding that he will be called "Georgie in no time".
Charles and the Duchess of Cornwall were congratulated on the new arrival by throngs of well-wishers at the Whitstable Oyster Festival in Kent - a week on from the eagerly anticipated royal birth.
The couple were showered with gifts for Prince George including a tiny lemon T-shirt which Charles can pass on to the baby as a souvenir from his trip to the festival.
Shona Corcoran, 38, from Whitstable, said she and her three-year-old daughter Hannah felt that they should bring a gift for the baby prince and the perfect opportunity presented itself as they passed it on to Charles.
"It's one of the Whitstable Oyster Festival T-shirts and we just wanted to give something to George. He said, 'Oh, that's fantastic, thank you. I'm sure he'll like to wear that'," she said.
Charles met a woman who also has a grandchild called George. Margaret Quinney, 67, said: "He was talking about the grandchildren. He said there are lots of grandparents around."
It was after Charles met Mrs Quinney and her daughter Jo that he said: "George - a very good name."
Mrs Quinney, grandmother to six-month-old George, said they "just had a feeling" the Duke and Duchess of Cambridge would call their son George. Her daughter Jo said she thinks it will now be a "very popular" name for baby boys.
Sonia Rule, 38, whose partner works for the Whitstable RNLI Lifeboats crew, said she heard Charles joke that his grandson will "be known as Georgie in no time".
Charles and Camilla met with local fishermen during their visit to the week-long festival which dates back to Norman times. While Charles tried two oysters, his wife declined, saying: "I love them but I ate a bad one once." Charles joked with photographers who were keen to get a snap of him eating the local delicacy, having missed him eat his first.