Gemstones are rare and valuable. India has some of the most expensive ones. Here are the most expensive gemstones found in India.

You can now find more personalized Mickey Mouse birthstone jewelry in the Magic Kingdom. Gemstone and gold earrings and ...

With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the process.

A new study led by Brown University researchers shows how a water-rich mineral could explain the planet’s color, hinting at a wetter, more habitable past on the Red Planet. PROVIDENCE, R.I. [Brown ...

One of the biggest reasons is the planet's reddish hue, earning the fourth rock from the sun one its most popular nicknames -- the "Red Planet." But what exactly gives the planet its iconic color?

The collection was amassed over the past six decades, and among the more interesting stones is the Winston Red, a 2.33-carat fancy colour diamond. National Museum of Natural History director Kirk ...