Looking to buy Naturally formed Pearls

[Chandra]

Hi All,
I am looking to buy a minimum of 5 carat pearl for a ring (Odd shape is also fine) and also 30 - 50 small sized pearls for a necklace (Odd shapes also fine) - White / Creamy look pearls. Can anyone guide me to a place where I can obtain these (a website / email / phone number etc).

I appreciate your help.

Thanks,
Chandra.