The coral, of organic origin, is presented in the form of reefs, of which only some branched trunks are used in jewelry.
It is found in the western Mediterranean, the Red Sea, the Gulf of Biscay, the Canary Islands, the archipelago of Malaysia, the Midway Islands, Japan and the Hawaiian Islands.
The coral branches are harvested between 3 and 300 meters deep. After fishing, the corals are stripped of their soft parts and then sorted according to their quality.
In its raw state, the coral is matt; polished, it takes on a vitreous sheen.