A 6mm band ring in yellow gold with a 4mm round blue sapphire. The yellow gold band is available in most ring sizes. Details for this ring are provided at http://www.jewelat.com/shop/home/297-sapphire-gold-rings-band-RN0005-GY-14.html
http://www.jewelat.com/shop/home/297-sapphire-gold-rings-band-RN0005-GY-14.html