How much is 1 carat of black onyx worth?

The value of black onyx can vary widely based on factors such as quality, cut, and market demand. Generally, 1 carat of black onyx is relatively inexpensive compared to other gemstones, typically ranging from $1 to $5 per carat. However, prices can fluctuate based on the seller and specific characteristics of the stone. Always check with reputable gem dealers for the most accurate pricing.