Amethyst
Amethyst — Purple in Many Shades
Amethyst is the purple variety of quartz, known in Hebrew as Achlama. Its colour ranges from delicate pale purple to deep purple, sometimes with reddish or bluish undertones. Colour, transparency and cut allow it to suit different jewellery styles, from subtle pieces to bold designs.
Its name comes from a Greek word meaning “not drunk”, reflecting an ancient belief that the stone could prevent intoxication. This belongs to its cultural history, rather than its physical properties.
According to a traditional story, warriors in ancient Greece drank wine from amethyst cups before going into battle, reflecting the belief that the stone could help them remain clear-headed.
Amethyst at a Glance
| Property | Information |
|---|---|
| Mineral | Quartz |
| Variety | Amethyst |
| Chemical composition | SiO₂ |
| Colours | Pale to deep purple, sometimes with reddish or bluish undertones |
| Mohs hardness | 7 |
| Refractive index | Approximately 1.544–1.553 |
| Birefringence | Approximately 0.009 |
| Specific gravity | Approximately 2.65–2.66 |
| Typical appearance | Material selected for faceting is usually transparent |
These are general reference values, not test results for an individual stone.
Colour and Light
Amethyst’s purple colour is associated with colour centres in the quartz crystal structure involving trace amounts of iron and natural irradiation.
Some stones have an even colour, while others show lighter and darker zones. Cutting orientation and proportions affect how the colour and light appear once the stone is set.
Faceting is particularly suited to transparent material, bringing out its colour and reflections.
What Affects Quality and Price?
Colour is a major quality factor. Rich, even purple is highly sought after, although an overly dark stone may lose its liveliness in dim lighting. Pale shades can also be attractive and suit delicate designs.
Clarity to the eye, colour distribution and cut influence appearance. Viewing a stone under different lighting helps reveal how evenly and attractively it returns light.
Amethyst is available in large sizes, so impressive size alone does not indicate rarity or high quality.
Treatments and Identification
Heating can lighten dark amethyst and, in suitable material, change its colour to yellow or other shades. Some citrine on the market is produced by heating amethyst.
Laboratory-grown amethyst also exists, alongside imitations such as purple glass. Synthetic amethyst shares many basic properties with natural amethyst, so colour and appearance alone cannot establish its origin.
When natural origin or treatment information matters, gemological testing should be chosen according to the stone and the questions that need answering.
Suitability for Jewellery and Care
Amethyst suits pendants, earrings and rings. Its hardness allows regular wear, but it can still be scratched or damaged by impact.
For a custom design, we consider the stone’s dimensions, edge condition and intended wear, then choose a setting that supports it and displays its colour.
For home cleaning, use lukewarm water, mild soap and a soft brush. Avoid high heat and sudden temperature changes. Prolonged exposure to intense light may fade the colour of some stones.
Sources Around the World
Brazil and Bolivia are familiar amethyst sources, with material also known from Zambia and Russia. Geographical origin alone does not determine colour quality or value.
Spiritual and Symbolic Meaning — Beliefs and Traditions
In gemstone spiritual traditions, amethyst is associated with calm, a quiet mind and the easing of anger. It can serve as a personal reminder to pause, reflect and approach life with inner stillness.
In spiritual traditions, it is also associated with spiritual transitions, including the passage from life to death, and the belief that death is a stage in a journey rather than its end. Within this belief, it can symbolise continuity, remembrance and acceptance of change.
These meanings belong to the realm of belief and symbolism. They can give jewellery personal significance, but they are not proven gemological properties or a promise of healing, protection or a change in health.
Your Stone, in Jewellery Created for You
At TzurGems Jewelry & Gemstones, we combine Guy’s gemological knowledge with the craftsmanship of Rafael, our goldsmith and artist. We examine the stone, listen to your story and design jewellery that suits both the material and the person who will wear it.