When you think of expensive gemstones, what comes to mind? Most people think of the Big Four: diamonds, emeralds, rubies and sapphires. However, it might surprise you to know that there are ...

Among the countless gems found in nature, a select few stand out not only for their beauty but also for their astronomical value. Here’s a look at some of the most expensive gemstones in the world.

Green gemstones are believed to symbolize harmony and healing — only part of the reason they’re so expensive. Green reminds people of nature, so it’s only natural that green gemstones are believed to ...

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Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

Our desire for beautiful things is as instinctive as it is ancient. Even before the advent of modern civilization, humans used the sparkling gifts of the earth for adornment, and believed them to be ...

Fancy color diamonds are among the rarest and most valuable gemstones. Diamonds in the normal color range are colorless through light yellow and are described using the industry’s D-to-Z color-grading ...

A glossary of the jewelry industry’s most precious sparklers. Our desire for beautiful things is as instinctive as it is ancient. Even before the advent of modern civilization, humans used the ...