The value of tanzanite can vary widely depending on a number of factors, including its color, clarity, cut, and carat weight. In general, tanzanite is a relatively expensive gemstone due to its rarity, beauty, and demand. Here are some general price ranges for tanzanite:

1. Low-quality tanzanite: Low-quality tanzanite may be pale in color, have visible inclusions or blemishes, or be poorly cut. Prices for low-quality tanzanite can range from $50 to $200 per carat.

2. Mid-quality tanzanite: Mid-quality tanzanite is typically a deeper blue color with fewer visible inclusions or blemishes. Prices for mid-quality tanzanite can range from $200 to $500 per carat.

3. High-quality tanzanite: High-quality tanzanite is a vivid blue or violet-blue color with excellent clarity and cut. Prices for high-quality tanzanite can range from $500 to $1,500 per carat or more.

Of course, these are just general price ranges, and the actual value of tanzanite will depend on its specific characteristics and market conditions. It is always a good idea to work with a reputable jeweler or gemologist when buying tanzanite to ensure that you are getting a fair price for the quality of the stone