The arrival of the Duke and Duchess of Cambridge's firstborn son is being commemorated with a jewellery collection.

Prince George's birth will be marked by special trinkets that take inspiration from the Middleton family crest.

It was created by designer Claudia Bradby, who worked with Kate in 2007 when she was accessories buyer for fashion label Junior Jigsaw.

The collection features a silver necklace with a pearl acorn charm, as well as a silver bracelet with royal-themed charms.

"Mighty oaks from little acorns grow - that's the saying and the sentiment behind it," Bradby told People magazine.

"It has some relevance to them as a couple because the inspiration for the design was drawn from her own family crest."

Recalling her time with Kate, she described the duchess as "warm, charming and intelligent".

Bradby, who is married to Tom Bradby - former royal correspondent for ITV who conducted the official engagement interview - said: "She will be a fantastic mother. She has a really fantastic mother herself and she comes from a very stable family.

"She has got everything going for her."