Perfectly round and smooth deep green sea glass with sterling silver on black silk cord. The length is adjustable with a sliding silver bead, so the pendant can be worn long, short of layered with others.
Found at low tide along England's North Norfolk coast by my art school friend Debby.

Your jewellery will arrive in a natural recycled card gift box tied with raffia, with my details on the inside lid for future reference, together with one of my sea glass post cards.