A 6mm band ring in white gold with a 4mm round blue sapphire. The white gold band is available in most ring sizes. Details for this ring are provided at http://www.jewelat.com/shop/home/296-blue-sapphire-white-gold-ring-RN0005-GW-14.html
http://www.jewelat.com/shop/home/296-blue-sapphire-white-gold-ring-RN0005-GW-14.html