Top 10 World’s Rarest and Most Expensive Gemstones!

1. Tanzanite

This striking blueish-purple stone is found exclusively in the Merelani foothills of Mount Kilimanjaro in Tanzania. And with great rarity, comes a greater price at $600- $1,000 per carat.

2. Taaffeite

Only a few number of taaffeite stones have ever been discovered since this initial discovery in 1945, mainly in Tanzania and Sri Lanka.
If you’re fortunate enough to come across some, taaffeite is priced between $1,500 and $2,500 per carat.

3. Black Opal

Opal is a fairly common gemstone, but black opals are a beautiful rarity. 

4. Benitoite

Although small deposits in Japan and Arkansas have uncovered benitoite, the only commercial benitoite mine is in San Benito, California. 
Per carat, this sapphire-blue stone costs between $3,000 and $4,000.

5. Red Beryl

The Wah Wah Mountains in Utah are the only place where gem-quality crystals of red beryl are found.
Red beryl gemstones can cost up to $10,000 per carat when cut.

6. Alexandrite

Since its discovery in the 1830s in the Ural Mountains of Russia, new deposits have been found in East Africa, Sri Lanka and Brazil.
Amazingly, alexandrite can cost up to $12,000 per carat.

7. Jadeite

Today, Myanmar is the primary source of jadeite, which sells for more than $30,000 per carat.

8. Musgravite

Musgravite After its 1967 discovery in South Australia’s Musgrave Range, there were just eight musgravite stones that were known to exist in the entire world. Musgravite is still exceptionally rare and expensive, costing about $35,000 per carat.

9. Painite

Only two specimens of painite were known to exist even decades after mineralogist Arthur C.D. Paine discovered this orange-brown stone in Myanmar in the 1950s, making it the rarest gemstone in existence.
Also, painite costs $50,000–$60,000 per carat if you can find it.

10. Pink Star Diamond

The Pink Star Diamond receives the title of “Most Expensive and Rare Gem.” This magnificent gem is a hefty 59.6 carats. According to this evaluation, the Pink Star is worth $1,208,053.69 per carat.


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