diamonds were created deep within the core of the earth under extremely
high pressure and temperature, and brought to the surface by volcanic
eruptions. the age of most diamonds is estimated to be more than 100 million
a diamond has an almost unique power of light reflection. it sparkles
with fire and brilliance. it is composed of a single unadulterated element
- carbon and it is the hardest transparent substance known to man.
india was the only source of diamonds in the ancient world. diamonds
mined in the golconda region - known as golconda diamonds - were the only
diamonds avaliable till almost the 17th century. these are not mined any
longer but golconda diamonds are still considered the best diamonds in
the world. old pieces are usually found rose-cut or antique-cut, but recut
to modern brilliant cut specifications, they far surpass diamonds found
in other mines. most diamonds are mined in africa, australia, russia along
with other areas. india is the leading diamond processing country in the
a diamond's complex characteristics cannot be duplicated and no two diamonds
can ever be the same. more than 250 tons of ore need to be mined and processed
to yield just one carat of rough diamond of which only 20 percent are
suitable for gem cutting.
'the 4 Cs of diamonds'