This makes the emerald one of the most valuable gemstones in the world. Alexandrite 70 000 per carat. Jeremejevite is deemed one of the most expensive gemstones in the world with the worth of 2000 per carat. Most expensive gemstones in the world blue diamond 3 93 million per carat jadeite 3 million per carat pink diamond 1 19 million. This most expensive gemstones considered as the most expensive diamond in the world and its extraction is of australian origin.
Its average price is 2 5 million dollars per carat. The largest loose diamond in the world is the paragon diamond weighing in at 137 82 carats while the pink star diamond is the most expensive gemstone to ever be sold at a whopping 83 million. 1 jeremejevite 2000 per carat this gemstone is actually made of aluminum borate mineral with fluoride and hydroxide ions. But the most rare and most expensive are the black opals. The stone has also been unearthed in brazil mexico the united states mali and ethiopia.
Out of all the different hues in which the opal gemstone is found the black opal is the rarest and commands the most price. T sotheby s magnificent jewels and jadeite sale in hong kong last week an unmounted 88 22 carat oval white diamond fetched a price of hk 108 million. Different opal gemstones are of different colours because of the different conditions in which each one is formed. Out of all the different hues in which the opal gemstone is found the black opal is the rarest and commands the most price. Its average price is 2 5 million dollars per carat.
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Different opal gemstones are of different colours because of the different conditions in which each one is formed. This makes the emerald one of the most valuable gemstones in the world.
