Shop natural iolite gemstones valued for intense sapphire-blue to violet tones and exceptional optical trichroism. Often termed "water sapphire," our iolite inventory offers faceted gems, polished cabochons, and rough crystals ideal for custom jewelry design. Buy genuine loose iolite gemstones today.
What is trichroism in iolite gemstones?
Trichroism allows iolite to show three distinct colors (violet-blue, clear, and honey-yellow) when viewed from different crystal angles.
Is iolite routinely heat treated or enhanced?
No, iolite is virtually always natural and untreated, owing its violet-blue color entirely to natural iron content.
How hard is iolite for jewelry settings?
Iolite rates 7 to 7.5 on the Mohs hardness scale, offering high durability for everyday jewelry wear.