Sapphire Crystal — Cornflower Blue — Gem Rough

$3,117.97
Chemical FormulaAl₂O₃
Crystal SystemTrigonal
Mohs Hardness9
Specific Gravity4.00
LusterVitreous to adamantine
TransparencyTransparent

Sri Lankan sapphires have been prized since the Silk Road era — their distinctive cornflower blue, softer and more luminous than Kashmir or Montana material, made Ceylon the defaul…

Only 3 available — a rare find.

SKU: TC-GEM-0429
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Description

Every mineral is a story of chemistry, pressure, and patience. Sri Lankan sapphires have been prized since the Silk Road era — their distinctive cornflower blue, softer and more luminous than Kashmir or Montana material, made Ceylon the default source for royal jewelry for centuries. The color comes from iron and titanium impurities in corundum. A natural, unheated crystal of this quality is rarer than the faceted gem.

This specimen originates from Ratnapura, Sabaragamuwa Province, Sri Lanka, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Sapphire Crystal — Cornflower Blue — Gem Rough from Ratnapura, Sabaragamuwa Province, Sri Lanka. This locality is known for producing specimens of exceptional quality.

Collector Notes

Store on a padded surface; avoid contact with harder minerals.