Codd marble and peridot necklace.
40 cm around the neck with5.5 cm max width
Codd bottles are an old design of glass bottle with a marble in the neck which acts as a stopper.  Very occasionally I find one of the marbles on the shore where they seem to be remarkably resilient.  This bespoke necklace incorporates a Codd bottle marble with a scattering of peridot into a tangle of bubbly seaweed made from flexible copper wire, enamelled with a metallic brown.