How much is real topaz worth?

Depending on the origin, color, clarity, size, and cut the price of a real topaz can range between $5 to $7 per carat (treated blue topaz used to be worth $20 to $40 per carat). Color is the most important factor in determining the cost of topaz. Red- or pink-colored topaz are the most valuable, followed by orange and yellow. Find antique and vintage topaz jewelry on 1stDibs.