Alexandrite was not discovered until 1830 when it was found in the ural mountains in russia. 1 jeremejevite 2000 per carat this gemstone is actually made of aluminum borate mineral with fluoride and hydroxide ions.
It is the largest vivid pink diamond ever graded by the gia and was sold for 60 million at an auction in hong kong in 2017.
Most valuable gemstone ever. Pink star diamond the honor of most rare and expensive gem goes to the pink star diamond. It sold for 30 42 million making it the most valuable stone that wasn t a diamond. The blue diamond currently holds the record of the most valuable gemstone with a price of price about 3 93 million per carat.
But the most rare and most expensive are the black opals. Jadeite is the purest rarest and most vivid gemstone in the jade family. When it was put up on sotheby s auction block in 2013 the pink star went for a jaw dropping 83 2 million.
Since this deep green translucent gem is significantly rarer than other types of jade it is worth much more. The 180 carat opal is especially admired due to its large size and. Alexandrite will currently cost consumers around 10 000 per carat.
The sunrise ruby also called the burmese ruby set a world record in 2015. Named for russian tsar alexander ii alexandrite is a part of the emerald family. Blue diamond is no doubt a darling of precious stone collectors around the world.
These rare stones can be reddish purple or blueish green and at 10 000 per carat are quite valuable. The buyer of the pink star diamond later renamed it to ctf pink. Jadeite 3 million per carat jadeite is a highly valuable precious stone in a gemstone family called jade.
The stone has also been unearthed in brazil mexico the united states mali and ethiopia. One of the most valuable black opals of all time is the aurora australis which was uncovered in lightning ridge in 1938. This gemstone is jade s most expensive most beautiful variety.
Jadeite ranks near the top of a list of one of the most valuable gemstones in the world. Jadeite 3 million per carat. This stunning beauty weighs in at a hefty 59 6 carats.
There are less than 30 red diamonds. Rubies are valued according to their color with the most expensive sporting a shade known as pigeon s blood. While the pink star diamond broke its record for most expensive jewel ever sold the blue diamond holds the record for the most valuable price per carat at 3 93 million.
Above we featured the diamond as one of the most expensive gemstones and coming in at number 1 with a price tag of over 1 million per carat is the red diamond. It s a 59 60 carat gemstone that was mined in 1999. The pink star diamond previously known as steinmetz pink is the world s most expensive gemstone.
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