C W Sellors Sterling Silver Whitby Jet Flower Thimble, G350 This solid sterling silver thimble features a round hand carved Whitby Jet gemstone at the top and an attractive floral design decorating the walls of this lovely bespoke piece. Perfect as a gift, for collectors and sewing enthusiasts alike. Dimensions; 22mm x 17mm, Whitby jet; 12mm x 12mm. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.