Isnin, Disember 03, 2007

Ten rarest gems on earth.



10. Jeremejevite - Pronounced ye-REM-ay-ev-ite, this is a colorless, sky blue or pale yellow stone, the highest quality of which comes from Namibia. In nature it occurs in small obelisk-shaped crystals and has in the past been mistaken for aquamarine. It was named after Russian mineralogist Pavel Jeremejev who discovered the mineral in 1883. As of early 2005, a clean, 2.93-carat faceted gem was selling on the Internet for $2000.00 per carat.


9. Black Opal - Australia is the classical Opal country and today is the worldwide most important supplier of Fine Opals. Almost 95 per cent of all Opals come from Australian mines. The remaining five per cent are mined in Mexico, and in Brazil’s north, also in the US states of Idaho and Nevada, but recently the stones have also been found in Ethiopia and in the West African country of Mali. Black Opal or Opal with a dark gray body shows the most brilliant play of colors imaginable.


8. Red Beryl Emerald - Red beryl is found primarily in the Thomas Range and the Wah Wah Mountains of Utah, and has also been reportedly found in a location in Mexico (possibly near San Luis Potosi one of the very few places beryl is also found on rhyolite). Where it is found in Utah it occurs on rhyolite, where it crystallized under low pressure and high temperature, along fractures or cavities and porous areas of volcanic rhyolitic magma. Very few cut specimens exist.


7. Musgravite - Musgravite is one of the newest and most rare gemstones in the world. Musgravite is a silicate mineral whose main ingredients are beryllium (Be), magnesium (Mg) and aluminum (Al). It was named ‘musgravite’ after the area Musgrave in Australia from where the material was first found. The musgravite was later found also in Greenland and Madagascar, but neither of them produces gem quality material. Two pieces of faceted gem-quality musgravite from Sri Lanka were reported first in 1993. Keep in mind, this is the LEAST priceless of the ten.


6. Grandidierite - This is a bluish green mineral found primarily in Madagascar. The first and so far only clean faceted specimen, from Sri Lanka, was originally mistaken for a serendibite and subsequently purchased in May 2000 by Prof. Gübelin from Murray Burford. The gem shown above weighs 0.29 carats. Grandidierite is trichroic, transmitting blue, green and white light. The mineral is named after French explorer and natural historian Alfred Grandidier, who among other things unearthed bones from the extinct half-ton elephant bird in Ambolisatra, Madagascar.


5. Painite - This gem was once believed to be the rarest mineral on earth, is today still considered very rare. British mineralogist 1950s first discovered it in Myanmar. When it was confirmed as a new mineral species, it was named after him: Arthur C.D. Pain. For many years, only three small painite crystals were known to exist. Before 2005 there were less than 25 known crystals found, though more material has been unearthed recently in Myanmar.


4. Blue Garnet - Garnets species are found in many colors including red, orange, yellow, green, blue, purple, brown, black, pink and colorless. The rarest of these is the blue garnet, discovered in the late 1990s in Bekily, Madagascar. It is also found in parts of the United States, Russia and Turkey. It changes color from blue-green in the daylight to purple in incandescent light, as a result of the relatively high amounts of vanadium. The most expensive, a 4.2 carat gem sold in 2003 for $6.8 Million.


3. Serendibite - This gem is a cyan colored stone that comes from Sri Lanka. It boasts an unusually complex formula consisting of calcium, magnesium, aluminum, silicon, boron and oxygen. So far there exist only three faceted (cut) specimens of 0.35 carats, 0.55 carats and 0.56 carats. The first two were discovered by rare stone specialist D. P. Gunasekera and purchased by the late Prof. E. J. Gübelin of Switzerland. The smallest was sold for about $14,300.00 per carat.


2. Red Diamonds - Only a very few red diamonds are ever found, and few people have only seen even one treated red diamond. The gem is described as a purplish red, so it is not a pure red, crimson, vermilion, or scarlet. Nevertheless for its size it is one of the most expensive diamonds ever. The Argyle Mine in Australia produces a small number of red diamonds. The largest and finest of these are auctioned every year or two, and sell for millions of dollars.


1. Jadeite - Until recent years jadeite has been something of a mystery mineral, but we now know of primary sources in Guatemala as well as several California occurrences of white or grayish jadeite. Boulders in which a few small freestanding crystals have been seen occur in San Benito Co., California, with additional finds in Clear Creek, between New Idria and Hernandez. All Mexican jadeite is in artifacts, from unknown sources. The record price for a single piece of jadeite jewelry was set at the November 1997 Christie’s Hong Kong sale: Lot 1843, the “Doubly Fortunate” necklace of 27 approximately .5 mm jadeite beads sold for US$9.3 million




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15 ulasan:

  1. Jadeite is not the rarest gems on earth. Purple diamonds are rarer than reds. There are also diamonds more colorless than D and more Flawless than FL.

    Just google Jager Asscher Golconda and he will show you the way...

    BalasPadam
    Balasan
    1. Jadeite? That's a species of jade, along with nephrite. I'm seriously doubting it even belongs on this list.

      Padam
  2. Perfect natural pearls are also as rare as red and purple diamonds. In fact they are even rarer bcoz nothing exists yet.

    BalasPadam
  3. Jadeite is not the rarest gems on earth, painite is. It was recognized in 2005 as the worlds rarest gem by the guiness book of world records.

    BalasPadam
  4. thanks for the info, this list is already out of date

    BalasPadam
  5. Could anyone out there please comment on the rariety of clinohumite???? How unusual is it????

    BalasPadam
  6. i am sorry,i am a huge collector of rare gems,and in 2009 the most rare gem is the red bixbite ..hands down...johnnyg

    BalasPadam
  7. the most rare gem in 2009 is the red beryl bixbite....i am a huge collector of rare gems..thanks johnnyg

    BalasPadam
  8. i dont know what is most rare or expensive becoz everyone says different things.To me diamond is most expensive because its the hardest substance known and is actually rare in size so any bigger than 2-3cm is rare.

    BalasPadam
  9. I am interested in the rare blue garnet which s bluish green in the day light and purplish red in incandescent light. I have several of this stones which have been confirmed to have a vanadium as well. More information about this read the following article- http://www.roskingemnews.com/Master_Page/ColoredStone.aspx.

    Thanks ,
    Okeno.

    BalasPadam
  10. Golconda diamonds, pigeon blood red rubies & cornflower blue sapphires, russian alexandrites & natural silicon carbide should also be on this lists.

    By the way true violet diamonds are the rarest gems on Earth not purple and not even red and red diamonds are even rarer than red emeralds (bixbite) hands down! Just count how many red emeralds are sold on Jewelry Television versus the number of red diamonds in existence.

    BalasPadam
  11. i have a 63 crt.black opal anyone buyer?? i dont know howmuch per crt??

    BalasPadam