Is blue coral natural?

Some of it is. While imitation blue coral is made from a variety of materials, including polyresin, natural blue coral is a vulnerable species unique to the Indian and Pacific oceans in the tropics. Commonly found in shallow waters off Ishigaki Island in southwest Japan, blue coral has a skeleton made of aragonite, and it’s the only species in the Helioporidae family. Shop a collection of blue coral pieces from sellers on 1stDibs.