Gemstone Encyclopedia

A guide to every natural stone we work with — where it comes from, how to recognise it, how to care for it, and the traditions attached to it.

Amethyst

Translucent violet to deep purple quartz with natural colour zoning.

Milky blush-pink quartz with a soft, cloudy translucence.

Golden-brown bands with a silky chatoyant shimmer.

Soft green quartz flecked with sparkling mica inclusions.

Warm honey to golden-yellow transparent quartz.

Deep royal blue rock veined with pyrite gold and white calcite.

Glassy, colourless quartz with natural internal veils.

Opaque jet-black crystal with vertical striations.

Pearly white feldspar with a blue adularescent glow.

Metallic brass-gold cubic clusters with a mirror lustre.

Rich blue stone marbled with white calcite veining.

Banded green, purple and clear crystal with glassy faces.

Deep wine-red crystal with a vitreous shine.

Vivid green with concentric light and dark banding.

Rosy pink stone with black manganese dendrites.

Bright olive-green transparent gem with an oily lustre.

Soft translucent stone in honey, orange or blue tones.

Warm peach-orange feldspar with glittering aventurescence.

Smooth, dense green stone with a waxy polish.

Earthy brick-red opaque stone with subtle patterning.