How much does a opal gemstone cost?

The cost of an opal gemstone can vary significantly based on factors such as type, quality, size, and origin. For example, common opals can range from $10 to $100 per carat, while high-quality black opals can reach prices from $1,000 to over $10,000 per carat. Boulder opals and fire opals also have their own pricing structures, generally falling somewhere in between. Ultimately, the specific characteristics of the opal will determine its market value.