Necklace with Constantine Coin and chain in 14K yellow gold and a 0.03ct diamond. Constantine is the most recognisable amulet. It is a feature of the Orthodox religious tradition and is offered to newborns, infants or even baptisms. In fact, in the past, before the appearance of the baptismal cross, the Constantine was the main jewel of the sacrament of baptism for the infant, in order to protect it from evil and negative energy.