When royal bride Kate Middleton marries Prince William later this month, she'll partake in a time-honored, long-standing custom of the royal family and wear a ring made of rare Welsh gold.

The Associated Press reports Middleton will follow-through with the custom of nearly 90 years following the April 29 matrimony. But Price William will not be wearing a wedding ring. The information came from an anonymous spokeswoman for the prince but did not want to be identified because of palace policy and the decisions being the personal wishes of the royal couple.

More information about that ring and the origin of the Welsh gold will be available prior to the wedding.

Queen Elizabeth II and the late Princess Diana wore Welsh gold, which is of high quality yet scarce. Royal weddings since 1923 have used the gold.

One gold mine that used to provide the gold has closed but the queen holds some of that gold, which was gifted to her by the British Royal Legion in the 1980s. Some of that gold was used when Price Charles and Camilla wed.