12 of the rarest gems in the world
Today, there are about 200 varieties of natural gemstones in the world. Along with precious stones (natural diamonds, emeralds, rubies, sapphires and alexandrites, as well as natural pearls in raw (natural) and processed form), there are many semi-precious stones, some of which are incredibly rare that their value exceeds many of the most valuable gems in the world.
Discovered in Madagascar, the amazing beauty of the mineral was named in honor of the island's Explorer Alfred Grandidier. The stones have a pronounced white-green-blue tricolor. The first sample of pure grandidierite was purchased for 29 thousand dollars. Today, the existence of 8 authentic minerals has been confirmed.
In the 19th century, scientist Pavel Eremeev discovered a stone that he considered a special type of aquamarine. Later it was found that this is an independent mineral. No more than three stones are mined per year. The price per carat starts at $ 2000. Products with eremeevite are the subject of antique jewelry value.
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Majorite is named after the physicist Alan Major, a unique purple mineral also called purple garnet. This color of pomegranates gets in the process of exposure to huge pressure. It was first discovered in Western Australia. The cost of the mineral with the weight of 4.2 carats, was 6.8 million dollars.
One of the rarest minerals was named after the Irish scientist Taaffa, who discovered the stone in 1945. the Authenticity of the stones is determined by the effect of double refraction of light. The price of minerals reaches $ 10,000 per carat.
The stone is a rich blue color, capable of self-illumination with a white-blue color under the influence of ultraviolet light. The mineral is unique, found only in the United States, in San Benito County, and is a symbol of the state of California. The price of processed bentonite reaches up to $ 4,000 per carat.
The red-orange stone, named after the English scientist Arthur Payne, appears in the Guinness book of world records as the rarest mineral. In the world, 18 stones of jewelry quality are considered and described. The transparent, intense-colored mineral is extremely rare, so far only three have been found.
7. Red diamond
Among colored gems, the rarest is a red diamond, the average price for 1 carat of which reaches 1 million dollars. The natural color is purple-red. This color is given to such diamonds by permanent deformations in the structure of the crystal lattice. The most beautiful among them are the rating of the "fancy red". The only active field is the Argyle mine in Western Australia. There are about 50 red diamonds in the world.
Jewelry jadeite — a rare stone from bright green to emerald green color. The Imperial variety is considered the most valuable of the jadeites. The largest faceted jadeite is estimated at $ 2 million.
The mineral is pale-pink color named after a canadian family Poudret, who owned the quarry where the stone was discovered. One of the rarest gems. The first stone of jewelry quality weighing 9.41 carats was found in 2000 in Myanmar. Currently, the main supplier padrecito is Canada.
10. Red beryl
"Red beryl" or "red emerald" was first described in 1904 by the American mineralogist Bixby. Chemical analysis shows a connection with aquamarine and emerald, but red beryl is a very rare mineral. Active deposits are available only in the United States. The mining process is technologically very complex. The largest cut mineral has a mass of no more than 10 carats.
The amazing stone, which can change its color, was discovered in 1830 in the Urals in Russia and named after the Russian Tsar Alexander II. Alexandrite is a variety of chrysoberyl and in sunlight looks like a blue-green, but in the light of an incandescent lamp becomes red-purple. The cost of this gemstone weighing up to 1 carat is $ 15,000, but a stone weighing more than one carat will cost as much as $ 70,000 per carat.
12. Black opal
Opals are usually cream-white in color and have iridescent inclusions that reflect light when the stone is moved. Black opals are much rarer because almost all of them are found in mines in lightning ridge, Australia. The darker their color and brighter their inclusions, the more valuable the stone is. One of the most valuable black opals of all time is the "Aurora Australis", which sold in 2005 for $ 763,000.