Opal gemstone is considered so priceless that people are even using it in their engagement rings! However, in this blog, we'll focus on this brilliant gem's monetary value and know the various factors that affect it. Here, I'll talk about the individual opal stone prices and the opal stone price when embedded in the sterling silver setting to create brilliant opal gemstone jewelry. I'll also tell you about the different varieties of opal gems found across the world. I personally feel that along with the good things that increase the opal gemstone's worth, you should also be well aware of the possible defects that negatively affect it.