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Did you know that the world’s
most valuable diamonds are
red? Only the wealthiest
people can afford them. Think
about this: God owns all the
diamonds in the world. How
rich He must be!
Diamonds come in many colors:
red, yellow, orange, green,
blue, pink, purple, brown,
gray, black, and white. How do
they get that way, and where
do they come from? Click the
diamonds to find out.
YELLOW
Where: Yellow diamonds are found in the ground all around the world.
Why: A fancy yellow diamond gets its color from small amounts of nitrogen in its crystal structure (lattice).
X
ORANGE
Where: Mostly South America and Western Australia
Why: Like yellow diamonds, orange shades come from nitrogen in a diamond’s crystal.
GREEN
Where: Mostly South America or Africa
Why: Green diamonds come from rocks with radioactive material inside (such as thorium or uranium). When radiation enters a diamond, it can knock electrons or carbon atoms out of place. The lattice changes, and so does the color of the outer layer of the diamond.
BLUE
Where: South Africa, India, Australia
Why: Blue color comes from boron trapped in a diamond’s structure.
PINK
Where: Almost all pink diamonds come from Australia’s Argyle Diamond Mine.
Why: Intense heat and pressure changes the diamond’s crystal lattice, turning the diamond pink.
BROWN
Where: Brazil, Angola,
the Congo, Borneo, Australia
Why: Brown is the most
common natural diamond
color. Great pressure deforms
the diamond’s structure. This
changes the way a diamond reflects
light and creates popular brown
diamond colors known as chocolate,
cognac (KOWN-yak), and champagne.
PURPLE
Where: South Africa, Russia, Australia
Why: Purple diamonds likely get their color from an unusual amount of hydrogen.
GRAY
Where: Australia, South Africa, India, Russia, and Brazil
Why: Gray diamonds have a high concentration of hydrogen and also sometimes some boron.
BLACK
Where: Brazil and the Central African Republic
Why: Black diamonds have usually been tainted with graphite, pyrite, or hematite.
Where: Australia, Africa, Botswana, Namibia, Venezuela, South America
Why: These are different from colorless diamonds. They contain irregularities that change the way light passes through. The color of white diamonds might remind you more of milk than water.
WHITE
RED
Where: Most come from Australia’s Argyle Diamond Mine. Some have been found in India, Russia, and South America.
Why: No one is sure. The red might come from the way the diamond’s carbon atoms are twisted. This is called “carbon distortion.”