... 3. Material Types: Abalone, Awabi, Akoya, Agoya, Banana, Black/Brown/White Mother of Pearl (MOP), Mussel, Paua, River, Trocas, Trocas, Trochus4. ... Sizes: 4.5-40MM, Custom-made based on the Natural Feature of ... on the Natural Feature of Different Shells6. Shapes: Regular and Irregular7. Colors: Pure White, Black, Pink, Natural Colors ...