Red Coral, Turquoise, Gaspeite, Charoite, Apple Coral, and Lab Opal inlaid in Sterling Silver. earrings (1" Long) (Pierced Only). Rainbow Inlay Necklace - Matching, hand-strung Necklace with Pendant made up of Turquoise, Gaspeite, Apple Coral, Charoite, Red Coral, and Lab Opal inlaid in Sterling Silver. (Approx 18" Long). Rainbow Inlay Earring & Necklace Set.