This 5.5 ct Australian opal rough rub full-spectrum of color is a stunning gemstone that will surely catch the eye of any jewelry enthusiast. Its unique form and beautiful color make it a great addition to any collection. The gemstone is an opal, which is known for its unique properties and stunning appearance. This particular specimen is a rough rub, which means that it has been minimally processed to bring out its natural beauty. It is perfect for those who appreciate loose gemstones and want to add a special piece to their collection. #C76