This pendant's design has an octahedron at its heart surrounded by eight tetrahedrons, one projecting from each face of the octahedron. It can also be seen as two large tetrahedrons intersecting each other, with the octahedron marking where they overlap in the middle. It is ~1.5" across.
These earrings pair well with any of our bronze, clean style Platonic solids earrings.
The necklace can easily be strung on a chain or cord to make a necklace. If you're not interested in assembling a necklace yourself, we also offer necklaces on our Etsy shop. (Though our stock is always changing; if you don't see a design you're interested in stock there, just ask!)