Oysters are the main producers of pearls, but clams and mussels can also create them. Pearls form when oysters secrete layers of nacre around irritants. There are natural and cultured pearls, with ...

Pearls form as a natural defense mechanism when oysters trap irritants inside their shells and coat them with layers of nacre. While natural pearls are rare, cultured pearls are carefully farmed using ...

A delicate, iridescent pearl takes over two years to form. The nearly six-millimetre pearl in the above video did too. The UAE's only pearl farm in Ras Al Khaimah invites visitors to witness the ...