CHAIN IS NOT INCLUDED Available in Solid 14K Yellow Gold, White Gold, & Sterling Silver Size Reference: 17mm is the size of a US dime 21mm is the size of a US nickel 24mm is the size of a US quarter Saint Ava is a Roman Catholic saint. Ava was the of King Pepin. She was cured of blindness by St. Rainfredis. She then became a Benedictine nun at Dinant, Hainaut, located today in Belgium, and was elected Abbess c. 845. Her feast day is April 29.