Sterling silver ring band with Australian opal and black onyx inlay by Mark Hileman.  Four pieces of black onyx boldly frame the Australian opal inlay.  The opal inlay is a dark blue body color with bright flashes of blue and green.  This handmade sterling silver man's ring is 6mm wide and is a size 10.  The ring can be special ordered in other sizes and inlay materials.  Customization options.  Special orders usually can be completed in 2 to 3 weeks.  This ring would make a nice wedding band or man's engagement ring for someone not interested in the traditional gold band.  A matching woman's band can be special ordered to make a set if needed.

Here is a wider ring option in 14k gold inlaid with black onyx and Australian opal.  http://www.etsy.com/listing/45629895/australian-opal-inlay-and-black-onyx