CHAIN IS NOT INCLUDED Available in Solid 14K Yellow or White Gold, or Sterling Silver Size Reference: 17mm is the size of a US dime 19mm is the size of a US nickel 25mm is the size of a US quarter Saint Charles Borromeo was a saint and cardinal. He worked during the period of the Counter-Reformation and was responsible for significant reforms in the Catholic Church, including the founding of seminaries for the education of priests. Borromeo was the nephew of Pope Pius IV. Along with Anselm of Lucca, he was one of only two cardinal-nephews to have been canonized.