Price
Retail price for 1 carat plus topaz:
Quality from high to low
London blue: $15-$25/ct
Swiss blue: $8-$20/ct
Sky blue: $3-$20/ct
Colorless: $3-$26/ct
Quality from high to low
London blue: $15-$25/ct
Swiss blue: $8-$20/ct
Sky blue: $3-$20/ct
Colorless: $3-$26/ct
Main origin
The main origins of topaz are Brazil, Russia, Sri Lanka, Afghanistan, Pakistan, and the United States. Brazil’s state of Minas Gerais is the world’s most important source of precious topaz, which is mostly cut natively.
Imitation
Glass, Cubic Zirconia, Synthetic Spinel, Synthetic Corundum
Blue cubic zirconia