Tokki is a Japanese term to describe a protrusion or bump. Occasionally, oysters will produce a pearl with curious shapes. These are the result of an accident during growth. Oysters definitely have a mind of their own.
Read more
For a truly vertical pearl farm, wild spat have to be ecologically collected from the surrounding waters in the South Seas. This is called natural spat collection. In the months of October and November, pearl oysters produce sperm and eggs in to a water column. It is here that they fertilize and form free swimming larvae.
Read more
There isn't a simple answer to this question. There are many factors that determine how long a pearl must grow in a mollusk.
Read more