More interesting, perhaps, is the biological process that occurs for the pearls to form. When debris gets trapped in between ...

A retractable foot, a siphon for sucking up water, powerful muscles, and, sometimes, a pearl. And you thought ... a kind of mollusk that's encased in a shell made of two valves, or hinging parts.

Thinning may solve the problem, Müller says, because lower shell density usually results in a higher quality pearl. "In effect, the farmers will be getting more with less," he says. Others feel ...

A great irony of pearl history is that the least expensive cultured pearl product in the market today rivals the quality of the most expensive natural pearls ever found. The price-value anomaly is ...

Natural pearls form when some kind of irritant, usually a small organism, makes its way into the shell of a mollusk like an oyster or a mussel. To protect itself from the invader, the mollusk ...

California-based Tsar Nicoulaioffers gold pearl trout roe for about $14 an ounce, with its bright orange in a firm shell and a silky, distinctive pop. AP California-based Tsar Nicoulai ...

What is it? Well, many of the manicures feature this ethereal, pearly, opalescent finish, a bit like the mother-of-pearl-insides of a mollusc shell. So there, I’m calling it: shell nails are ...