Solid 18k rose gold set with 12 natural rubies for a total of 0.58 ct.  Width of this particular band is 13 mm.  A wide variety of diamonds or coloured gems would be perfect in this model in your choice of gold colour or platinum.  Think it's too wide for your finger -- or not wide enough! -- let me custom design it to your desires.  Here's B List at 1 cm wide:

Contact Disegno for pricing details.