Iolite Gemstone Guide

Iolite is a mesmerizing optical treasure that shifts dramatically across an extraordinary spectrum of velvety violet blues, honey yellows and water-clear tones. At Tivon, we select only the top 5% of loose natural gemstones from this cordierite family to ensure each specimen displays an intense pleochroic shifting properties alongside maximum internal brilliance. Derived from the historic Greek word meaning violet, this remarkably robust stone served as a legendary secret weapon for early Viking mariners who utilized thin slices as a polarizing filter to safely navigate vast oceans.

Read below to explore the unique Indian and African geography, fascinating maritime history and core value factors behind this striking collector gemstone in our comprehensive Iolite Gemstone Guide. Alternatively, explore our luxury Iolite jewellery collection to discover our signature handcrafted statements, including our exclusive luxury Deco Collection featuring our breathtaking, architecturally inspired Iolite earrings designed to stand as a personal family legacy.

Vision, spiritual well-being & navigation

About Iolite

What colour is Iolite?

Iolite has different colours in different directions due to its pleochroistic properties. It may look a violet blue from one side, clear as water from the other and a honey yellow from yet another. Iolite is usually a purplish blue when cut properly.

Where does the name Iolite derive from?

The name Iolits derives from the Greek “Ios”, which means “violet”.

What is the symbolism of Iolite?

Iolite is said to bring good luck, spiritual and physical well-being.

What gemstone family does Iolite belong to?

Iolite belongs to the Cordierite family of gemstones.

What anniversary does Iolite represent?

Iolite represents the 21st wedding anniversary (Modern).

What is the hardness of Iolite?

Iolite is 7.0-7.5 on Moh’s Scale and therefore has a robust structure.

Where is Iolite geographically located?

The finest Iolite comes from India, Sri Lanka, Mozambique, Zimbabwe and Brazil.

Are there any interesting facts regarding Iolite?

Leif Eriksson and the other legendary Viking explorers ventured far out into the Atlantic Ocean, away from any coastline that could help them determine position. They did so with a secret gem weapon: Iolite. The Viking mariners used thin pieces of iolite as the world's first polarizing filter. Looking through an Iolite lens, they could determine the exact position of the sun and navigate safely to the new world and back.

What is the cleaning procedure for Iolite?

Due to its hardness, cleaning Iolite is not an issue.

What are the value factors of Iolite?

Iolite's value factors are its intensity of colour, its brilliance and the "life" of the stone as well as size.