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 eye-catching 1 in (25mm) pendant is 3D printed in 18K gold-plated brass, polished to a mirror-like luster on its outer surface, and paired with an 18-inch gold loop chain with spring clasp. A black velvet storage bag is included.
