How much is 1 carat of onyx?

The price of 1 carat of onyx can vary widely based on factors such as quality, color, and market demand. Typically, onyx is more affordable than many other gemstones, with prices ranging from $5 to $20 per carat for standard quality. Higher quality or specially cut pieces may command higher prices. Always consult a reputable jeweler for specific pricing based on the stone's characteristics.