Basically, almost all of Akoya Pearls are needed bleaching process more
or less because of blemishes.
Bleaching diminishes not only blemishes but also pink overtone. Therefore
many of Akoya Pearls are tinted to recover their original pink overtone.
Recently, there are some Akoya Pearls called "Natural White".
Those are not tinted like above.
But it is important that those pearls are also bleached though most of
sellers do not mention (or do not know) about it. Usually, truely natural
Akoya pearl (just picked up from oyster) is slightly yellowish.
Unfortunately, the pearls called "Natural White Akoya" are too
much bleached than other normal (tinted) pearls to make them sparkling
white.
This means the nacres (pearl layers) are damaged by hydrogen peroxide water.
So those pearls are easy to discolor than normal pearls.
And also, as Natural White Akoya's white is bleached white, we think its
not "Natural".
Even worse, so far, no one can distinguish true no-tinted Akoya from slightly-tinted
Akoya even laboratories.
There are a lot of those fake natural white Akoya in the market even if
sellers believe those are true no-tinted pearls.
By above reasons, in terms of durability and uncertainty, we don't recommend
"Natural White" Akoya, but if you do want them, the most important
thing is to find a trustworthy shop.
*South-Sea(Silver-Lipped) Pearls are not needed to bleach. We recommend
South-Sea Pearls when you would like "Natural White" Pearls if
the sizes meet your preference.
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