A Birthstone Claddagh Ring is an ideal gift in celebration of a birthday. A heart-shaped crystal stone, aquamarine - representing a March birthday - glows from the center of this sturdy, yet finely detailed, sterling silver Claddagh ring. This stone color represents serenity and calm.
http://www.irishvictorian.com/store/p108/Birthstone_Claddagh_Ring_-_March.html

A collection of gifts in celebration of the festival of St. Patrick on March 17th.  View full collection at http://www.irishvictorian.com/store/c47/St_Patrick%27s_Day_Gifts.html