Figure 1. Pinctada maxima shells: gold-lipped (left) and silver-lipped (right). Their names are derived from the color of their nacreous shells. Photo by Nuttapol Kitdee. Real-time microradiography ...
South Sea cultured pearls, cultivated using the bivalve Pinctada maxima, have an average size of about 13 mm (Strack, 2006). The shells reach sizes above 30 cm, making them the largest known pearl ...
The Pinctada maxima oyster can take up to five years to produce a single South Sea pearl, whereas more common freshwater oysters can take as little as three months and create dozens of pearls.
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