Tanzanite Price Calculator
Calculate tanzanite prices based on color grade, carat weight, clarity, and cut quality for this rare single-source gemstone.
Tanzanite Price Estimator
Estimate the market value of a tanzanite based on its key characteristics.
Investment Grade Analysis
Evaluate tanzanite as an investment based on projected appreciation.
Size vs. Price Curve
See how tanzanite price per carat increases with size for a given quality.
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Frequently Asked Questions
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Understanding Tanzanite Values
Tanzanite is one of the world's rarest gemstones, found exclusively in a small mining area near Mount Kilimanjaro in Tanzania. Discovered in 1967, it was introduced to the market by Tiffany & Co. and has since become one of the most sought-after colored gemstones. Its unique trichroic properties display blue, violet, and burgundy colors depending on the viewing angle.
Supply and Investment Considerations
Unlike most gemstones that are found in multiple locations worldwide, tanzanite comes from a single source. Geologists estimate that the Merelani deposit could be commercially depleted within 20-30 years at current mining rates. This finite supply, combined with growing demand, creates a compelling case for long-term appreciation, particularly for fine-quality stones above 3 carats.
Color is the dominant value factor for tanzanite. The finest stones show a deep, saturated blue-violet that is visible even under various lighting conditions. Heat treatment is universally applied and accepted in the trade, as it converts the naturally brownish crystals to the desired blue-violet color. Untreated stones in fine blue-violet color are extremely rare and command substantial premiums.