Grand Prize winner Rio Grande's Saul Bell 2008 National Design Competition

The fifth "Nautilus" pendant was selected to be part of the Gem Collection in The Smithsonian Institution's Natural History Museum in Washington D.C.

18k yellow and white gold pendant holding a round Phantom Spinner tm. tourmaline accented with a bezel set round diamond. This pendant is based on mathematical formulas: The spiral is loosely based on Descartes' "equiangular spiral", this spiral suspends the tourmaline over a spherical depression, beneath the tourmaline is a vortex deflector tm. which is a "truncated cone" made of spiraling white gold wires which fills the dish with the reflection of itself and the color of the tourmaline which passes through it creating the effect of a chambered nautilus shell.