The Himalayan Gem Belt: One Collision, Many Gemstones

The Himalayas.
The world's tallest range.

The same collision
that pushed them skyward
also built one of Earth's richest gem corridors.

A Mountain Range Born of Collision

50 million years ago.
India, once part of Gondwana,
met Eurasia.

Neither yielded.
The crust buckled.
Rock, pushed skyward.

Still rising, today.

Why Collision Zones Make Gemstones

Heat and pressure,
across vast ground.

Metamorphism.
Pegmatite.

Afghanistan. Pakistan. Kashmir. Nepal. Myanmar —
one corridor, many countries.

Kashmir Sapphire: The Belt's Most Famous Product

Discovered by a landslide, 1880s.

Formed here.
Tied directly
to the Himalayan orogeny.

Mostly depleted, since the early 20th century.
Still the benchmark
for velvet blue.

Beyond Kashmir

Pakistan's Swat Valley — emerald.
Afghanistan's Panjshir — emerald, different story.
Myanmar's Mogok — ruby, spinel, in marble.

A Belt Still Being Written

The mountains still rise,
millimeters a year.

Erosion. Uplift.
New deposits, exposed.

One tectonic event.
Several modern countries.
One gem story, still unfolding.