Golds, browns, yellows and oranges dominate nature this time of year and the same holds true for November's birthstones – topaz and citrine.

Learn the difference between natural and cultured pearls. Spoiler: Both are real! 

The dog days of summer are upon us and we’re keeping it cool with August's birthstone: the sublime Peridot. It's about as hardcore as a gemstone can get - it’s found in rocks created by volcanoes and even in meteors that fall to the earth.

Use this guide to find out if the pearls you own—or are looking to buy—are the real deal.

What are the rarest gemstones in the world? Discover seven gemstones that are rarer than a diamond—and gorgeous additions to your jewelry collection.