The mathematics of stereographic projection retrieves this banded torus from the unit sphere in four-space. The bands' edges are unit circles, any two linked. The torus itself is gently tilted in four-space, giving its solid shadow in three-space an enticing asymmetry.
This luminous 1-3/8 in (35mm) pendant is 3D printed in rhodium-plated brass, polished to a chrome-like luster on its outer surface, and paired with an 18-inch 1.6mm sterling silver French rope chain with a lobster-claw clasp. A black velvet storage bad is included.
