Turquoise Gem types, and prices | Why Turquoise Blue Gem most expensive?

• Turquoise was among the initial gems to be extracted, and numerous historic mining sites where the gem was discovered are currently closed. Though some of them are still functioning.

There are many types of Gem Turquoise, based on uniqueness colour and characteristics, rarity and origin. Found in abundance in countries like Iran, China, United States. Many other countries around the world have deposits of rare and exotic types of turquoise, as well.

• China has been a minor source of turquoise for 3,000 years or more.

• Iran has been an important source of turquoise for at least 2,000 years.

• Arizona, Nevada, California, Colorado, New Mexico are the States of US where the Gem is mined in good quantity.

• Turquoise can also be found in a variety of colours, including blue, green, brown, and black.

• Turquoise is used in jewellery, decorative items, gemstone collection.

• Because of the rarity and high quality, the Gem turquoise is considered more expensive than regular turquoise.

Turquoise can be priced from $1-$100 per carat, depending on the quality, colour, and size of the gemstone. While the Gem turquoise can be priced between $10-$1000 per carat (in some places.)

• The most expensive Turquoise is the Turquoise Blue Gem, which could cost between $100-$10,000 per carat.

• Arizona is currently the most important producer of turquoise by value.

• In recent years, turquoise has been devalued due to the introduction of treatments, imitations, and synthetics onto the market.

• There are many types of Turquoise Gem, and the most valuable is the blue gem turquoise, which may worth around $100-$10,000 per carat.

• The Blue gem turquoise is the most expensive type of turquoise, because it is the rarest and most sought-after.

• A Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium.

• The gem is naturally blue, but it turns green when heated due to dehydration.

It's a rare gem and a valuable investment in higher grades (according to experts), and humans have been using it for thousands of years because of its distinctive hue.

It has been worn by the rulers of Ancient Egypt, Persia, Mesopotamia, the Indus Valley, and to some extent in ancient China.

Despite being one of the oldest gems, probably first introduced to Europe (through Turkey) with other Silk Road novelties, turquoise did not become important as an ornamental stone in the West until the 14th century.

• It wasn't known in India until the Mughal period, and unknown in Japan until the 18th century.