BARADAK GEM GUIDE
Price of Tanzanite per carat
BARADAK separates lot acquisition, dealer market and public retail asking. Valuation depends on variety, origin, treatment, quality, weight and cut.
Analyze this gemstoneMohs6–7
MineralZoisite
RI1.691–1.700
SG3.35
What drives value
color saturationblue/violet balanceclaritycut/orientationcarat weighttreatment disclosure
Buyer intelligence
Strongly saturated blue-violet stones are the market ideal and are more often seen in larger sizes. Pleochroism makes orientation important.
Care
Cleavage makes it vulnerable to impact. Avoid steam and ultrasonic cleaning; gentle warm soapy water is preferred.
BARADAK uses summarized gemological information and links to technical sources; commercial ranges do not replace a laboratory report or formal appraisal.
GIA Gem Encyclopedia →