| Any pearls that have been drilled and matched in China have gone through it. Sure there are those few pearls that someone may select out prior to treatment - this is how we created the naturally brown and gold strand, as well as the untreated baroques a few months back.
Anything else has been treated - without exception. The treatment is accepted and it increases the value of even high-grade pearls. So it is done - universally.
The hot cold treatment tightens the skin of the pearl by dehydrating it. This increases the luster. Treatments to freshwater in China are rarely permanent, and the pearls will almost always change to some extent. |