Wholesale 16" south sea shell pearl strands Round shape, different colors: NO. 1 #609 - NO. 2 #601 - NO. 3 #620 - NO. 4 #613 - NO. 5 #617 - These pearls are 16mm size shell pearls. You can also choose different sizes & colors pearls. You can add to choose sterling silver clasp to make into pearl necklace.