The most expensive sapphire ever sold was $135,000 per carat ... but in 2000, the first gem-quality stone was found in Myanmar. Even now, transparent gem-quality stones over 1 carat are extremely ...

Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive ... that you've never, ever seen before. Narrator: Opal is found in several parts ...

Most gemstones are found at depths of 5km to 40km underground ... What is the 'new fact deep inside the Earth' that was trapped inside the ultra-rare diamond? - GIGAZINE Along with diamonds ...

Appealing to collectors of Earth's ancient treasures, Heritage Auctions is selling rare meteorites, fossils, and gemstones.

Besides the fact that pearls are appealing, they are considered valuable ... Pearls are found in the soft tissue of living mollusks, a contrast to most other gemstones that are dug up from deep ...

A rare penny is expected to sell for an eye-watering sum at auction so it's worth checking your change this instance. The ...

Discover the top 30 most expensive Yu-Gi-Oh cards ever sold, from ultra-rare promos to iconic tournament prizes, and learn ...

The most obvious example of this is with the constellations ... Just as Christopher Lee's Dracula in the Hammer horror series ...

Honda has always been known for producing some of the most popular vehicles in the market, but it also made some hidden gems ...

Besides the fact that pearls are appealing, they are considered valuable ... Pearls are found in the soft tissue of living mollusks, a contrast to most other gemstones that are dug up from deep ...