Connect with ancient wisdom and look stylish doing so with these Fibonacci Ammonite Sterling Silver Adjustable Rings. These rings feature a gorgeous ammonite set in an adjustable sterling silver band. Ammonites are ancient creatures that lived 400 million years ago. It represents the Fibonacci sequence and the never-ending stream of consciousness connecting you to the Source. This listing is for one (1) Fibonacci Ammonite Sterling Silver Adjustable Ring. Measures about 1-1.5”.