Floating Lockets The ultimate treasured piece. Our Love Story Floating Lockets, certainly tell your story. Whether the story is for a birthday, memorial gift, wedding or a special love, we have the floating charms to get your message across. Why not add a personalised backing plate or personalised charm. A photo/ or perhaps a unique message? On average, a 25mm locket will carry on average four 8mm x 8mm floating charms. Our 30mm Floating Lockets will safely handle approx six standard 8mm x 8mm floating charms. Please note there are some larger floating charms on our website. You will find measurements and weights in the specifications.