A 6mm band ring in 925 sterling with a 4mm round blue sapphire. The 925 sterling band is available in most ring sizes. Details for this ring are provided at http://www.jewelat.com/shop/home/299-silver-sapphire-band-ring-RN0005-SV-14.html
http://www.jewelat.com/shop/home/299-silver-sapphire-band-ring-RN0005-SV-14.html