Ruby: Corundum's Rarest Expression of Red

Ruby is corundum,
the same species as sapphire.

One element makes the difference.
Chromium.

It gives the red.
It gives the rarity.

An Element That Cuts Both Ways

Chromium colors.
Chromium also fractures.

Fine rubies glow faintly
even in ordinary light.

The same element
that gives beauty
also gives scarcity.

The Color Question

Pigeon's blood —
a red with a whisper of blue.

The name is old.
Burmese.
Still the standard.

Where Origin Speaks

Myanmar. Mogok Valley.
Marble hosts the stone.
Low iron lets the red stay pure.

Mozambique —
newer, more available,
color that can rival the old legend.

Heat, and the Absence of It

Most rubies are heated.
Standard. Accepted. Permanent.

Unheated stones
are rare enough
to need proof.

What to Look For

Not just color.
Transparency.
Evenness.
Cut.

A ruby that balances all three
is chemistry and craft
meeting, rarely, in one place.