This is sort of off the topic again, but it's a lovely stroy about the gold used for Felipe and Letizia's wedding rings.
There is a small town in Asturias where the men--for the sake of maintaining old traditions--still sift for gold in the river the way it was done in Roman times. As a wedding gift to the Prince and then future Princess these men sifted for gold until they had found enough gold for two wedding bands, and this was the gold used to make the rings. Pretty neat, huh!
Since we're also talking about wedding rings here, here's a great photo of both the engagement and wedding ring of Crown Princess Mary (the photo was posted by Mayflower from the Crown Princess Mary forum) :
1) Infanta Elena
2) Queen Elizabeth II
3) Sarah Ferguson, Duchess of York
4) Princess Astrid of Belgium
5) Viscountess of Althorp
6) Princess Alexandra of Denmark
7) Princess Caroline of Hanover
8) Grand Duchess Maria Teresa of Luxemburg
9) Grand Duchess Josephine Charlotte of Luxemburg
The last two rings are very similar, that type of engagement is probably worn by all luxemburg royal brides. Its looks like cabachon ruby, I could be wrong....