Black Diamonds - What Makes a Diamond Black?

Diamonds are found naturally in over 300 differentBecause their deep color comes from inclusions, rather
hues in colors ranging from red, orange, yellow, blue,than impurities, which would produce highly localised
pink, green, brown, white and of course, black. In factcolor distortions, just about all black diamonds are
diamonds are found in the greatest number of hues ofopaque. However semi-transparent and translucent
any gemstone. All natural fancy colored ones aregemstones do form and when found, they are
incredibly rare compared to the normally colorless, orconsidered very valuable indeed.
white gemstone. And this makes them substantiallyNatural blacks have been discovered and mined in
more expensive.Australia, parts of Africa and in Venezuela and Brazil.
Like all the colored fancies, a natural black diamondSurprisingly, though, they are thought to be well over 3
has the same crystalline structure and chemicalbillion years old! This is odd because it means black
properties as a white one. It is made from crystallinediamonds are significantly older than white ones, which
carbon and is the hardest natural substance known toare only about 1 billion years old! How this happened is
mankind. This means that it cannot be cut or scratchedunclear. But meteor impacts are now thought to have
except by a harder diamond. However, the inclusionsplayed a role in the formation of natural blacks, which
and impurities contained within the structure of a blackwere subsequently brought to the surface of the Earth
diamond make it more likely to fracture and splinterduring volcanic eruptions!
during the cutting process than its white counterpart,Because of their rarity, most black diamonds used in
although blacks tend to be harder once cut.contemporary jewelry have been enhanced. The
The color of natural blacks comes from countlessenhancement process, which mimics the natural
microscopic particles of smoky carbon graphite,formation of the gemstone, exposes genuine, mined
hematite and magnetite which were trapped within thespecimens to intense heat and radiation. This intensifies
crystal lattice of the gemstone structure during itsand darkens their natural hues and produces elegant
formation. Because they are integral to the latticeblack diamonds!
structure, these particles are known as inclusions, notWith their elegant appearance, rarity and air of
impurities. High concentrations of the inclusions cloudmystery, black diamond pieces make a sensational
the forming diamond. They absorb light and give theaddition to any jewelry wardrobe, especially if you are
gemstone its rich black metallic look and intenselooking for a diamond ring which is a little bit different!
brilliance.