Tridacna pearls are very rare, organic gems produced by the largest living bivalve mollusk from the Cardiidae family, known as the Tridacna gigas or Giant Clam. Tridacna clams can be found in the shallow waters of the Indo-Pacific, inhabiting coral reefs. They can live for up to 100 years, can grow as large as 4 feet across and weigh up to 440 pounds!
Natural Tridacna pearls are known for their porcelaneous appearance, sometimes displaying beautiful flame patterning.
Famous Tridacna Pearls:
Previously, the largest pearl in history was a Tridacna pearl known as The Pearl of Allah. It was found off the coast of the Philippines in 1934. It measured 9.4 inches long and weighed approximately 14 pounds! This pearl was valued by the San Francisco Gem Laboratory at $40,000,000.00.
The record was broken in 2016 by another Tridacna pearl found in the Philippines. This massive pearl measures over 2 feet long by 1 foot wide and weighs approximately 75 pounds!