I have written a little about Natural Abalone, Oyster, Conch and Scallop pearls on my web site.
If you have any questions please post them or contact me directly. I will be sure to answer them in detail.
I am very interested in information on conch pearls. I will be pleased if you can link me with, or provide me information on conch pearl buyers. You may send me information on European buyers or American or italian buyers.
If you really are interested enough in learning all about them, I recommend learning German first. There is an excellent book out by Elisabeth Strack called Perlen. I heard it is being translated into English now. However, at 600+ pages, that project may take a while. And I am NOT doing it.
Otherwise, you may find us exotics buffs quite mum on details. For one thing, you really have to learn the ropes, either by apprenticeship or by studying marine biology, networking and then trying to charm others out of their treasures. Money might help, too. If you have a lot of money, you can also buy from jewelers and traders that specialize in them. This way is not recommended for non-billionaires.
Did anybody besides me notice Reese Witherspoon's conch pearl earrings at the Academy Awards. My oh my, those were nice. I admit I am biased, but those were the most spectacular jewels at the entire event.