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Diamonds, rubies, sapphires, and emeralds are the ones we have hears as precious gemstones, whereas other types like quartz, tiger’s eye, agate, etc.are under the semi-precious category. The reason that these aren't considered in the 'precious' category is that they are more commonly available as compared to diamonds and rubies .The rarer a gemstone is, the more expensive it tends to be.
What are the most valuable gems in the world according to both rarity and price? We all know that diamonds, rubies, sapphires and emeralds fall on the list.Let us know a little about some particularly unique species of precious stones considered as some of the most expensive ones, that you may not be as familiar with.
#10 BLUE GARNET
when people talk about garnets , all they can picture are deep red ones . There are also blue garnets , they are very rare and sell for about $1,500 per carat. generally these blue ones are spotted in colour changing garnets. they can look blue or purplish red based on the angle they are held at .

#9 PAINITE 
This is another gemstone you probably have not heard of, unless perhaps you read the Guinness book of world Records, which was once described it as the rarest mineral on the planet. . If you want to purchase one of these beautiful red-brown minerals, you must quite be ready  to pay around $1,800 per carat for the rare privilege.it was so rare that in 2005 , you could have probably found only 18 pieces even if you had gone around the whole world.

#8 JEREMEJEVITE
This is a clear stone that  may be white, colorless, blue or yellow. It was discovered in Siberia by Pavel Vladimirovich Eremeev. They have been found throughout the world including Germany, and Tajikistan, but they are very rare and cost around $2,000 per carat.

#7 RED BERYL
Red is a very uncommon color in beryl. It is generally in the blue-green hue range. Beryl is closely related to aquamarine and emerald. It is mostly translucent which tends to capture light very beautifully.  How much will you pay for a piece of red beryl? Probably around $10,000 per carat.

#6 ALEXANDRITE
 Alexandrite is another color changing gemstone even more valuable than blue garnet, for which you may pay up to $10,000 per carat for a good piece. it has been in increasingly high demand over the past few years, influencing the prices to go higher and higher. It ranges between purplish-pink and bluish-green in color. Some pieces may also range between red and blue, similar to the blue garnet in appearance.

#5 SERENDIBITE
This is probably one you haven’t heard of. Nonetheless, it is very valuable, priced at around $18,000 per carat! Only two regions have ever produced this, one being Sri lanka and the other, Burma. Colors may vary, ranging from gray-blue to blue-green and pale yellow. Many pieces are also black, and may contain subtle hues or no extra coloration at all.

#4 GRANDIDIERITE
Like painite, there are only a a few pieces of thes stones. Although this one is not as rare as painite , it is even more expensive, costing around $20,000 per carat. They might be a light grayish blue in color.



#3 RED DIAMONDS
 The majority of diamonds are white, yellow, or even brown. If you find a red diamond, you probably have found the most expensive gemstone you could have ever imagined . A nicely cut red diamond can easily sell for $20,000 per carat, and that is not even the upper end. Some stones may sell for even more. If you find a true red diamond (without even slight shades of any other color), its value will be even greater.



#2 JADEITE
This type of gemstone can sell for more than $30,000 per carat. Jadeite may be either a bright, bold green, an emerald hue, blue, or white. Some jadeite pieces contain several different hues. The brighter the green, the more valuable the jadeite is. if you see and affordable jadeite , its probably fake .If you see really expensive jade, you are probably looking at genuine jadeite.



#1 MUSGRAVITE
This silicate mineral gemstone was first found in Musgrave, Australia, and thus the name “musgravite.” Since then, the stone has also been found in areas like  Sri Lanka and Madagascar, as well as in Greenland. It is generally violet in color, usually with a grayish tint. Stones may be light or dark in color. As this stone is still incredibly rare, it may be valued at around $35,000 per carat.






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