Gemstone Opal Jewelry is one of the finest gemstones. The best of this gemstone comes from Ethiopia, so whenever you buy the opal, check that it is an Ethiopian opal crystal. However, Australian opals are also quite fine, but Ethiopians are better. It is formed of silica and water and comes in many different colors, ranging from red, blue, pink, green, yellow, orange, black, and many more. Find best and beautiful design of Opal Jewelry at Sagacia Jewelry.