Coral beads are an organic gemstone consisting of the branch-like skeleton structure built by small marine animals. Deposits are found in the Mediterranean Sea, Red Sea, Canary Island, Malaysia, Midway Islands, Japan and Hawaii. Coral is mined by harvesting from the marine location and cut into ornamental shapes and is increasingly controlled by environmental laws. Polished coral has a vitreous luster while natural coral has a dull luster. Coral colors are white, pink, salmon, black and red (rare) and can appear translucent to opaque in quality.