Always a good read!

A paragraph sounds particularly intriguing - that about change and limits:

" The cultured freshwater pearl industry, unlike the Tahitian, South Sea and akoya industries, operates in an environment with little to no constraint. [...]where producers are free to set their own rules. "

... thinking a bit of what kind of operations, where in the world make pearls outside China, 'costraints' gets quite interesting. What constraints might bind, say, Kamoka more then a typical Chinse pearl farm?