| They are actually referred to as regenerated pearls. But if described as keshi, they would properly be described in quotes.
It's sort of the same way GIA would not refer to golden South Sea pearls as gold, but rather as yellow or "gold" in quotes because gold is not a color in the visible light spectrum (red, orange, yellow, green, blue, violet). Gold is actually orange-yellow.
I don't really agree with CIBJO that keshi pearls cannot happen in freshwater pearl production. This is certainly wrong. But the pearls are not differentiated from non-keshi because they are both solid nacre.
Regarding the regenerated pearls, however, they really do not fit the definition of keshi as they are completely intentional; the pearls are removed and the shell is returned to the water to grow regenerated pearls in the existing pearl sacs. But in industry-speak they are most often referred to as "keshi" pearls. |