This is Niihau shell necklace, this item made of lenalena (light yellow), light blue Momi shells with pink Kahelelani shells and Tahitian pearl center piece.

Origin of shells: Niihau

Pearl size: 8.78 mm

Measures: shell measures 1 inch (measures from end to end)

Necklace measures: 17 1/2 inches (measures from end to end)

Material: 14K gold filled