Opals are some of the most unique gemstones on Earth. They range from milky white to fiery red and deep blue-green, and all have a kaleidoscope of shimmering colors within, called play-of-color. Here ...

There’s something special about opals — several things, to be exact. Every opal is unique due to variations in flashes of color and patterns. And the shade of the opal can change based on the lighting ...