South Sea pearls are among the huge industrially collected cultured pearls on the planet. The normal size of a South Sea pearl is 14 mm, with most collects creating a scope of sizes from 9 mm to 20 mm. The South Seas lie between the northern shore of Australia and the southern shore of China. These waters are the local natural surroundings of a large oyster known as Pinctada maxima. This shellfish grows up to 12 inches in distance across, and can be nucleated with an a lot bigger bead than other saltwater clams, for example, the akoya.