Shapeways USA just announced 14k Gold, read more on the blog

Hollow Block

Not For Sale
This is the same as the Spiral Block, but it has the center cut out to save on cost and so it can be polished better.

Dimensions

IN: 0.5 w x 0.5 d x 0.5 h
CM: 1.27 w x 1.27 d x 1.27 h