But let’s be a bit more specific. What gives gemstones colors, or rather, what changes the way they absorb and reflect light so that they come out in so many different, striking colors?

black opal exhibits many different colors contrasted by a dark body tone. Frederick: It's simply the most stunning gemstone on the planet. It's just remarkably beautiful. You can put the thing ...

A garnet's color depends on its chemical composition, according tothe International Gem Society. For instance, almandine garnets range from deep red to purple. While andradite garnets can be ...