'Pigeon's
blood' Rubies from
Mozambique, Madagascar and
Tanzania. Ruby is the most
valuable variety of the
corundum family commanding
the highest price per
carat.
Throughout
history the red ruby is one
of the most important and
recognisable stones and has
been mentioned in Sanskrit
texts dating back to 2300
years BC.
Pure
corundum is colourless.
Slight traces of elements
such as chrome, iron,
titanium or vanadium are
responsible for the
beautiful red
colour.
Only
red corundum is entitled to
be called ruby, all other
colours being classified as
sapphires.