White Gold & Diamond Men's Black Onyx Octagon Cut Ring 
This bold men's ring is crafted of cool, gleaming 10K solid white gold for a truly distinctive look. A large 10 X 8mm octagon cut (emerald cut) genuine black onyx gemstone (weighing approximately 3 carats), and 2 white, round diamonds, are set on a fashionable band of white gold. The upper part of the band has a brushed finish for extra style. Black onyx is February's or December's birthstone. This men's black onyx ring qualifies for free custom ring sizing. Size 11 is standard. When you order a custom size, please allow an additional 7-10 business days processing time.