5 Most Expensive Gemstones in the World 

Precious and semi-precious gemstones have different meanings for different people. These gemstones occur naturally across the planet and are often used as jewelry items or for decoration purposes. In addition, some rocks fall under the affordable range, while some are super-expensive and rare.

So, what are the most expensive gemstones in the world? The images of gorgeous, brilliant-cut rubies, emeralds, and diamonds might pop up in your mind. It’s natural to get these names. However, multiple factors make a gemstone rare and expensive. 

So, let us today talk about the most expensive gemstone that exists in the world today. Stay with us as we unearth the highest valuable gems and the factors that make them so expensive. 

5 Most Expensive Gemstones on Earth

Black Diamonds 

Black diamonds are the rarest and one of the most highly-prized gemstones in the world. They get their black color from graphite under intense pressure and heat. The 57-facet. 88-carat Korloff Noir is the largest black diamond in the world. It is insured for $37 Million. 

How much does a black diamond cost? The total cost depends on whether it is untreated natural or a heal-treated natural diamond. The price of untreated black diamonds is around $3,000 per carat. At the same time, the cost of treated black diamonds is about $300 per carat. It is one of the most valuable gemstones in the world. 

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Black Opal

Do you know how Black Opals are formed? They are formed when silicon dioxide and water leak into natural faults of the earth. Halley’s Comet is so far the most expensive specimen and the largest Black Opal in the world. Its cost is around $1.6 Million. 

How much does one carat of Black Opal costs? According to the experts, the cost of one carat Black Opal is around $10,000. Get in touch with an expert to know more about the most expensive crystal in the world. 


Ruby gets its name from the Latin term “ruber.” Like sapphires, rubies are also formed from corundum. Burmese rubies are some of the highest valued rubies in the world. The distinct natural fluorescence and saturated color offer a fiery glow to them. 

Moreover, the world’s biggest ruby – “The Sunrise Ruby,” was auctioned in Sotheby’s in 2015. The record price of this 25.59-carat gemstone was $30.8 Million at that time. The cost of a one-carat ruby is around $1,000. It used to be the most expensive rock in the 1950s.


What is the most expensive gemstone in the world? Well, Musgravite is one of the rarest and most expensive gemstones so far. This olive green to greyish purple translucent gem was first found in Myanmar in the 1950s by mineralogist Arthur C D Paine. 

Do you know what makes it so rare in the world? Because only two specimens of Musgravite have been found so far. And what is the cost of this gorgeous gemstone? The cost of a one-carat Musgravite is around $35,000. It is the most expensive crystal in the world.


Count Edward Charles Richard Taafe discovered this dazzling gemstone in 1945. You would be surprised to know that, to date, only a handful of taaffeite gemstones have been found in the world, making it one of the rarest. 

According to this Austrian geologist, this gem is found in Tanzania and Sri Lanka. The cost of one-carat taaffeite falls in the range of $1,500 to $2,500. You can consult a gemologist to know more about the most expensive stone

FAQs on the Most Expensive Gemstones

What are the most expensive gemstones ever sold in history?

Emerald: It is one of the world’s most powerful and popular crystals. This exotic green 18.04-carat gemstone was once sold for $5.5 million to John D Rockefeller at a Christie’s auction. 

Ruby: A precious 26-carat Burmese Ruby was once bought by Laurance Graff for $8.6 million. This vibrant ruby is still a part of the Graff collection. People around the world come to witness the grandeur of this dazzling gemstone. It is hands down the most expensive gem in the world. 

Black Opal: Ernie Sherman is known to purchase the most expensive Black Opal in 1931. He bought a 225-carat gemstone for £2,000 directly from the miners. Please note that it is one of the highest prices for this crystal. With this, Black Opal marks its presence in the list of the most expensive crystals. 

Diamond – The rare blue 13.22-carat diamond, “Winston Blue,” was bought by Harry Winston at Christie’s auction.

What are the 7 precious stones?

Rubies, Diamonds, Emeralds, Pearls, Alexandrites, Sapphires, and Oriental Cat’s Eye are the seven precious stones of the world. 

What are the most popular gemstones?

Diamond is the most popular precious stone in the world. It comes in different colors, like blue, yellow, green, and red. The rarest diamond is red. And the most popular one is the shining clear diamond.

What are the most popular semi-precious stones?

AgateGarnetAquamarineMoonstoneOpaliteTourmalineLapis LazuliRose QuartzTurquoise, and Pearl are the most popular semi-precious stones in the world. 

What is the rarest gem in the world?

Painite is not only the rarest gem on the earth but is also the rarest mineral found on the earth. It was discovered in 1951. Moreover, only two specimens of Painite have been found so far.

What stones are more valuable than Diamonds?

Red Beryl, Alexandrite, Grandidierite, Musgravite, and Painite are the gemstones that are more valuable than diamonds.


So this was all about what is the most expensive gemstones in the world. Every gemstone comes with its set of mysterious physical, mental, and metaphysical properties. If you are an ardent gemstone collector, you should consider associating with an experienced gemologist to get the best and the rarest stone into your collection. 







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Navkiran lives in Punjab state of India with her husband and an exceptionally perfect furry companion named RAIN. When she is not writing, you can find her busy cooking, decorating & organizing her home, or watching TV series.

Navkiran Dhaliwal is a pro blogger and copywriter with 10+ years of experience working with clients from all over the world. She has written for several renowned online magazines and newspapers.

Navkiran lives in Punjab state of India with her husband and an exceptionally perfect furry companion named RAIN. When she is not writing, you can find her busy cooking, decorating & organizing her home, or watching TV series.

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