Everything about the Imperial topaz
The topaz stone is a semi-precious stone with excellent
clarity and brilliance. It is a November birthstone and symbolizes peace,
friendship, and happiness.
Among all varieties of topaz, including London blue topaz,
Swiss blue topaz, and white topaz, the Imperial topaz is the most expensive
one. It is extremely rare and its price can easily go above $1500 per carat.
What is Imperial topaz?
Imperial topaz, the most expensive variety of topaz with a
deep orange-red color, is one of the most beautiful and rarest gemstones in the
world. Today it is only produced in Minas Gerais, Brazil.
History
In ancient Europe, the Imperial topaz was a gemstone
reserved for the royal family or the church and was a rare and expensive
variety of all colored gemstones. Common people know very little about it.
By the mid-18th century, Imperial topaz became popular in
France and Spain along with diamonds. It was often set in precious metals as
bespoke jewelry for the upper classes.
Today, renowned jewelry brands still value the beauty of
Imperial topaz. It is often paired with other precious gemstones and metals to
create luxurious jewelry.
Imperial topaz properties
Generally, topaz is bright and translucent, but imperial
topaz is an exception. The larger the size, the more likely it is to contain
impurities.
Therefore, large and transparent Imperial topaz is extremely
rare. Because of the low yield, it is even more valuable than diamonds.
Imperial topaz has a hardness of 8, which is as hard as ruby
and sapphire.
However, it exhibits low levels of toughness, so we need to
take care of topaz jewelry carefully to avoid chipping or cracking.
In addition, high temperatures or sudden changes in
temperature can cause topaz to fracture. Its color may fade with prolonged
exposure to heat or sunlight.
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Color: Gold, orange, red, and dichroic
Although there has been some controversy about the colors of
Imperial topaz, the mainstream view is that it is mainly gold, orange, and red.
Generally speaking, gold is the entry-level for Imperial
Topaz. The redder, the higher the market price.Therefore, the red Imperial
topaz is the rarest and most expensive variety of Imperial topaz, with a unit
price easily reaching $10000 per carats. And its quantity is very limited, you
can't buy it even if you want.
In recent years, the newly discovered peach and purple
imperial topaz stones have been particularly noticeable, but these gems have
been treated at high temperatures, so they are still less valuable than the red
and orange varieties.
Finally, the best imperial topaz not only exhibits a
reddish-orange hue but is also dichroic. Sometimes we can even see three colors
on a single imperial topaz.
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