1. Natural history
( www.Google.com) DIAMONDS.
The formation of natural diamond requires very specific conditions—exposure of
carbon-bearing materials to high pressure, ranging approximately between 45 and
60 kilobars (4.5 and 6 GPa), but at a comparatively low temperature range between
approximately 900 and 1,300 °C (1,652 and 2,372 °F). These conditions are met in
two places on Earth; in the lithospheric mantle below relatively stable continental
plates, and at the site of a meteorite strike.[10
Interesting facts about diamonds
( Some Specific )
1. The word "Diamond" comes from the Greek word "Adamas" and
this means "unconquerable and indestructible".
2. In 1477 the Archduke of Austria gave a diamond to Mary of
Burgundy. This was the earliest record of man giving diamond to a
woman.
3. Diamonds worn in ancient times were believed to promote
strength, invincibility and courage.
4. To produce a single one-carat diamond, 250 tons of earth will be
mined.
5. The diamond is the hardest natural substance found on the earth.
6. Diamond is a birthstone for people born in the month of April.
7. Diamonds were first discovered in India and then in Brazil.
8. Diamonds have very large melting point of 3820K (3547' C/ 6420'
F) and a boiling point of 5100K (4827' C/ 8720' F).
9. Most diamonds found in nature are between one to three billion
years old.
10. A single diamond of two carats is worth more than twice a much
as 2 one carat diamonds.
11. On average, each stone will lose 50% of its original weight during
cutting and polishing.
12. Diamonds are carried to the surface by volcanic eruptions.
13. Although the US accounts for less than one-percent of total global
gemstone production, America buys more than half of the world's
total gem quality diamonds - accounting for the world's largest
diamond market.
14. There are white dwarf stars in space that have a diamond core.
Biggest diamond known in universe weights 2.27 thousand

2. trillion trillion tons which is 10 billion trillion trillion carats, or a 1
followed by 34 zeros.
15. The largest diamond ever found was the Cullinan at 3106 carats.
16. 80% of the world's diamonds are not suitable for jewelry.
17. Color of diamond is usually pale yellow to colorless, but can also
be brown, blue, green, orange, red, pink and black.
18. The Crater of Diamonds State Park in Arkansas is the worlds only
diamond mine open to the public — this is a dig-for-free operation
for tourists and rock enthusiasts.
19. Since as far back as 1906, there have been more than 70,000
diamonds discovered in the Crater of Diamonds State Park in
Arkansas — this includes the 40.23 carat "Uncle Sam Diamond"
— the largest diamond of its kind ever found in the US discovered
in 1924.
20. In traditional Hinduism diamond with some kind of flaw or flat or
incut should be avoided because it carries bad luck.
21. In Ancient and Middle Age time it was believed that diamond's
hardiness can only be broken if diamond is smeared with fresh
goat's blood.
22. Greek historian Pliny wrote that "diamond baffles poison, keeps
of insanity and dispels vain fears".
23. Diamond Jubilee means 60 or 75 year anniversary.
24. The ancient Greeks believed that diamonds were splinters of
stars fallen on the earth.
25. A law in Thirteenth-century France decreed that only the King
could wear diamonds.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~