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 ...

— Recommendations are independently chosen by our editors. Purchases you make through our links may earn us and our publishing partners a commission. Blue Nile Riviera Pavé Alternating Pink Sapphire ...