This is Momi & Tahitian pearl pendant/necklace. This necklace using blue Momi uliuli, yellow, purple and white Momi shells & Tahitian pearl centerpiece.
Origin of shells: Niihau
Shells + pearls section measures: 2 inches (measures from end to end)
Over all necklace measures: 16 1/4 inches (Measures from end to end)
Pearl size: 8.12 mm
Findings: 14K Gold filled