Conch Pearls

Conch pearls contain no nacre and so technically they are not pearls. Instead, the gems are calcareous concretions, similar to kidney stones in humans. They are produced by the Queen conch mollusc (Strombus gigas), which lives primarily in the Caribbean.

For more information on Conch pearls please visit:-

http://www.pearl-guide.com/conch-pearls.shtml