CHAIN IS NOT INCLUDED Available in Solid 14K Yellow or White Gold, or in 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 Color Laser is a patent pending process, color is guaranteed to last forever Color Medals can be worn in the pool, shower, etc. without affecting the image. We guarantee it. The Sacred Heart is a religious devotion to Jesus physical heart as the representation of the divine love for humanity. This devotion is predominantly used in the Roman Catholic Church and also used in the Anglican Church, particularly among Anglo-Catholics. It also stresses the central Christian concept of loving and adoring Jesus. The origin of this devotion in its modern form is derived from a French Catholic nun Marguerite Marie Alacoque, who said she learned the devotion from Jesus in visions.