The Fascinating World of Opal Rings: Everything You Need to Know About Opal Rings: Opal rings are a flexible and eye-catching option for those looking to make a statement with their style and jewelry. When choosing an opal ring, it is important to thoroughly check and examine the opal itself. There are two main categories: precious opals and common opals. Precious opals are further divided into black opals, white opals, and crystal opals, each with its unique attributes and allure. Black opals are renowned for their dark body tone, providing a striking background for their vibrant play-of-color. In contrast, white opals feature a pale body tone that allows the play-of-color to become the focal point. Crystal opals are transparent to semi-transparent, offering a more subtle display of color, making each opal ring a unique and beautiful choice.