Topaz that has undergone this treatment and been turned dark blue is sometimes used as a simulant for aquamarine these are distinct gem species.
Blue topaz stone value.
Colorless topaz is not of particular interest to gemstone dealers and buyers and is therefore inexpensive even for bigger specimens.
As for blue topaz gemstones practically.
London blue topaz gemstone oval cut 14x10 genuine natural loose stone.
Red topaz is particularly rare and therefore one of the most expensive types of this gemstone.
It is beautiful and affordable in large sizes making it a perfect statement stone.
Blue topaz is ideal for jewelry with a hardness level of 8 on the mohs scale.
However a custom cut stone can sell for as much as 150.
However since topaz is typically less expensive than aquamarine consumers should be wary of unscrupulous vendors who may try to sell treated topaz as aquamarine.
London blue topaz gemstone oval cut 14x10 genuine natural loose stone.
Blue topaz is available in many shades of blue such as light sky blue bright swiss blue and darker london blue.
About blue topaz blue topaz is one of the all time top selling gemstones.
Natural blue topaz stone value drops dramatically for highly included pieces with poor transparency.
Oval cut genuine swiss blue topaz loose stone gemstone.
Make offer 7 80ct.
As with other gemstones color has important implications on topaz s value.