Tanzanite prices are dictated by the laws of supply and demand in a way Diamond prices aren’t. Diamond prices are controlled by the big players like De Beers who control the supply to market and hence the price.
Unlike Diamonds and gems like Tsavorite, Tanzanite prices do not currently increase rapidly on a per carat basis at different carat brackets. Tanzanite value and hence price is very much linked to rarity – the finer the color/clarity/cutting grade the higher the price. The chart below is a snapshot of prices currently observed in the market in 2020.
Within each bracket there is a price range and this accounts for different outlets and different markups within the supply chain. If you buy at Tiffany’s for example, the price for the same Tanzanite will be different than buying from the source.
CHART SHOWING TANZANITE PER CARAT PRICES IN 2020
The chart assumes good cutting and proportions and VVS clarity.
CARAT WEIGHT Investment Grade
Finest 1% Mined AAA Grade AA Grade A Grade B Grade
0.00 – 1.99 carats $600 – $700 $425-$480 $300 $200 $100
2.00 – 2.99 carats $750 – $1350 $500 – $550 $325 $250 $150
3.00 to 9.99 carats $780 – $1380 $550 – $575 $350 $275 $170
10 carats plus $800 – $1500 $580 – $590 $400 $300 $190
Adjustments
Fine Cutting – Add 5% to 15% Poor/Native Cutting – Deduct 15% to 30%
Clarity Adjustments VS Clarity – Deduct 5% – 8% SI Clarity – Deduct 15% to 20%
