May we suggest:
Moonscape ring
The Moonscape Ring is the boldest ring in the CJ Recht collection. The ring is set on a square shank which keeps it from rolling around. The circular top is heavily textured with alternating light and dark ridges which create a stunning surface-of-the-moon look. The Moonscape Ring is also available in bronze and oxidized sterling silver. Make a statement with this one, which is $240 in sterling silver.