Silver Ring, United States

Ribbed shoulders support a flat sky-blue slab on a chunky ring.

This Kingman turquoise and sterling silver ring is from the United States, and is contemporary. Turquoise is a hydrated copper aluminium phosphate that is relatively soft, so it is usually cut as a smooth cabochon and held in a protective bezel. Rectangular and pale blue with golden-brown veining, the gem is set flush in a heavy, matte, squared setting. The side shoulders have parallel grooves, and the polished face contrasts with the brushed band.

Blocky, bold, and utterly unafraid of the geometry.