Cobalt calcite is a compassionate gemstone that brings emotional healing Explore the warm-hearted beauty of Sagacia's Cobalt Calcite jewelry and let it elevate your sense of style. These jewelry pieces are crafted out of pure hypoallergenic 925 sterling silver and they are also plated with rhodium vermeil so that the shine of the jewelry remains as it is for a long time. Each piece features 100% genuine and natural cobalt calcite featuring delicate pink hues.