St. Peregrine Chaplet Agate Gemstone (Patron Saint of Cancer Patients) Hand Crafted in the USA - Agate (Natural) Gemstone St. Peregrine Chaplet 8mm Agate gemstone beads - The powers of the Agate stone include strength, courage, longevity, love, healing and protection. Crucifix and St. Peregrine- Crucifix may vary. St. Peregrine is the Saint of Cancer Patients. Includes the Prayer to St. Peregrine and the gemstone meaning. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.