Pearl jewelry is often passed down in families ... The Most Expensive Tanzanite in the World The most expensive pieces of Tanzanite in the world were found by a small-scale diamond miner.

Tropical rock lobsters, or pearl lobsters, as they're better known, are one of the rarest and most expensive lobster varieties. The colorful crustaceans are so valuable that there have even been ...

From the rainbow-hued pearl lobsters of Indonesia and the ... we uncovered the stories behind six of the world's most expensive kinds of seafood. Our first stop is on the northeast coast of ...