Gemstones are made up of a variety of minerals, rocks, and organic materials. With over 300 gemstones currently documented and over 2,000 minerals. There are bound to be some that are much rarer and more valuable than diamonds. Minerals can be classi¦ed into gemstones based on their chemical composition, refraction, crystal structure, and optical characteristics. In the list below, we offer you a selection of the rarest gemstone

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 Mr. 999  January 11, 2021
Home  Top 10 Most Expensive And Rare Gemstones In The World
The 10 most expensive gemstones in the world
Gemstones are made up of a variety of minerals, rocks, and organic materials. With over 300
gemstones currently documented and over 2,000 minerals. There are bound to be some that are much
rarer and more valuable than diamonds. Minerals can be classi ed into gemstones based on their
chemical composition, refraction, crystal structure, and optical characteristics. In the list below, we
offer you a selection of the rarest gemstones.
Top 10 Most Expensive And Rare Gemstones In
The World
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2. 10. Alexandrite - ($ 12,000) per carat
Alexandrite is a type of chrysoberyl that has been found in the Ural Mountains. The stone was
discovered in 1830 in the Ural Mountains of Russia. The stone was named after Tsar Alexander II. The
difference between alexandrite and chrysoberyl is the presence of iron, titanium and chromium
present as impurities in alexandrite.
Buying Tip: Smaller varieties of alexandrite have been mined in Sri Lanka, Brazil and Asia, but
specimens of alexandrite are still very rare and expensive.
Average price per carat: ($ 12,000) per carat.
9. Ruby - ($ 15,000) per carat
Ruby is one of the most popular stones in the world, it is known for its shades of red. Its red color is
due to the presence of chromium oxide.
It can be found on all continents except Antarctica. The main deposits are in Thailand, Myanmar and
Sri Lanka, but the most valuable Rubies come from Asia.
Average price per carat: ($ 15,000) per carat
8. Diamond - ($ 15,000) per carat

3. The diamond is the one we've all heard of and is the centerpiece of most engagement rings. As stated
in their chemical makeup, diamonds are pure carbon which explains their incredible strength and
durability. Diamonds are found in cooled kimberlites that formed over 1 to 3 billion years.
Average price per carat: ($ 15,000) per carat
7. Jadeite - ($ 18,000) per carat
Jadeite ranks at the top of our list as one of the most valuable gemstones in the world. This gemstone
is the most expensive and beautiful variety of jade. This gemstone is the most expensive and beautiful
variety of jade. Since this dark green translucent gem is signi cantly rarer than other types of jade.
Buying Tip: The value of jadeite is based on the level of transparency and depth of color. Some very
beautiful pieces have even sold for over $ 1 million per carat. Most jadeites on the market will sell for
signi cantly less.
Average price per carat: ($ 18,000) per carat
6. Serendibite - ($ 20,000) per carat

4. Serendibite is an extremely rare gemstone and mineral originally discovered in Sri Lanka in 1902. This
inosilicate has a complex chemical formula with many side branches of calcium, boron, aluminum,
magnesium, etc. Serendibitis was recently discovered in the Mogok region of Myanmar.
Average price per carat: ($ 20,000) per carat
5. Grandidierite - ($ 20,000) per carat
Grandidierite is a very rare gem that can go up to $ 20,000 per carat. It was rst discovered in
Madagascar in 1902. It is often found as an accessory mineral on rocks rich in boron and aluminum,
with a pearly semi-transparent bluish green tint.
Average price per carat: ($ 20,000) per carat for high quality material.

5. 4. Taa eite - ($ 35,000) per carat
Taaffeite is a very rare mineral and often confused with spinel. Surprisingly, the gemstone was rst
discovered already cut and polished in Dublin, Ireland in 1945. The gem is found in alluvial deposits in
Sri Lanka and Tanzania. The main difference between spinel and taafeite is the double refraction
found in taafeite.
Average price per carat: ($ 35,000) per carat for high quality material.
3. Blue Garnet - ($ 1,500,000) per carat

6. Blue Garnet is a very rare and extremely expensive gemstone. There are only a few deposits in
Madagascar, the United States, Turkey and Russia. Blue Garnet appears blue-green when exposed to
daylight, while it turns purple when illuminated by unnatural light. The price of a carat is estimated at
1.5 million dollars. The most expensive 4.2-carat Blue Garnet stone was sold in 2003 for $ 6.8 million.
Average price per carat: ($ 1,500,000) per carat
2. Red Diamond: ($ 1,000,000 - $ 2,000,000) per carat
The Red diamond as one of the most expensive gemstones. At number 2 with a price of over $ 1-2
million per carat, we nd the red diamond. There are less than 30 red diamonds found worldwide, most
of them are less than half a carat. The famous Moussaieff red diamond was acquired in 2011 for $ 8
million. It is the largest red diamond discovered in the world. There is only one deposit for this stone, it
is located in Australia and is called The Argyle Mine.
Average price per carat: ($ 1,000,000 - $ 2,000,000) per carat.
1. Blue diamond - (57.5 million dollars) per carat

7. The most expensive gemstones in the world are blue diamonds. Not only are they rare, but they are
also known to have a spectacular shine. Of all the other gemstones, they are arguably the most
popular among people. The Oppenheimer Blue Diamond is the largest bright blue diamond ever to be
auctioned. It was sold for 57.5 million dollars for a weight of 14.62 carats, or 3.39 million euros per
carat.
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