A tanzanite’s value is based on the gem’s unique characteristics: colour, clarity and carat weight. The higher the tanzanite is graded according to its grading, the higher the price. This pricelist represents relative asking price for well cut round brilliant cut tanzanite that are graded under six times magnification, are internally flawless and are equal to a VVS clarity grading.
Please note the below prices are quoted USD $ per carat.
Which means for example: 0.10ct A/IF Tanzanite is $2 per stone using this formula: 0.10ct x $20 = $2