This grown-up friendship bracelet has been hand-woven from sea shell and rich grey silken cord and sterling silver chain. Featuring a thundercloud enamel Cosmos charm, this bracelet is finished with our Astley Clarke signature star-set lapis lazuli. Collection: Biography. Metal: Sterling Silver. Metal Type: Sterling Silver 925. Dimensions: 8 x 8mm charm. Bracelet Length: 180.5mm. Engravable: Front of Charm, Back of Charm.