Its official the Royal wedding ring will be made from Welsh gold.

The palace have confirmed that Kate Middleton will wear a wedding band made of Welsh gold from a nugget supplied by Cloggau Welsh Gold Company. Prince William who does not care for jewellery of any sort has chosen not to wear a wedding ring with the backing of his future wife. 

This Welsh gold ring is inscribed with the word 'Cariad' Welsh for sweetheart.
To read more about Welsh gold mined in Snowdonia click on the link below.
http://www.clogau.co.uk/AboutClogau/AbtClogau.aspx