Rare .950 Silver Vibrant Red Coral Cabochon Earrings These earrings feature vibrant, red coral oval cabochon gemstones bezel set in solid .950 (95%) fine Mexican silver. Marked Mexico 950 (silver acid tested for authenticity) 6 grams total weight 2 x 0.5 x 0.25” Red Coral is the name given to material formed by living organisms — marine corals of the genus Corallium. The material is highly valued for its durability and wonderful red color. Red Coral was used for jewelry in ancient Egypt and was a very popular gemstone in the Victorian era.