The Magic of Pleochroism

One of the reasons tanzanite fascinates collectors is its remarkable optical behaviour.

Unlike many gemstones, tanzanite is pleochroic, meaning it can display different colours depending on the direction from which it is viewed.

You may see:

💙 Blue

💜 Violet

❤️ Burgundy

These colours are not added by treatment or coatings.

They are created by the way light travels through the crystal's internal structure.

The viewing angle, lighting conditions, and crystal orientation all influence the colours you see.

This natural phenomenon ensures that every raw tanzanite crystal has a dynamic personality—changing subtly as it moves through the light.

Collector's Fact #19

Pleochroism is one of the defining optical properties that makes tanzanite one of the world's most captivating gemstones.

Raw tanzanite.

Untouched. Unrepeatable.