1st - Gold 
January 
February 
March 
April 
May 
June 
July 
August 
September 
October 
November 
December 
Capricorn - Garnet 
Aquarius - Amethyst 
Pisces - Aquamarine 
Aries - Diamond 
Taurus - Emerald 
Gemini - Pearl 
Cancer - Ruby 
Leo - Peridot 
Virgo - Blue Sapphire 
Libra - Opal 
Scorpio - Topaz 
Sagittarius - Tanzanite 
Amethyst
Buyer’s Guide
Quality, Composition, Colour & Value Explained
Discover how colour, clarity, treatments and cut influence amethyst value, and learn what truly determines quality before choosing your ideal purple gemstone.
A complete professional Amethyst Buyers Guide to understanding this gemstone’s quality, origin, treatments and value factors before purchasing.
Amethyst Meaning, History & Symbolism
Origins and Historical Use
Amethyst has been treasured for millennia, from ancient Egypt and Greece to medieval Europe. The name comes from the Greek word amethystos, meaning “not intoxicated,” reflecting its historical use as a protective talisman against drunkenness.
This violet variety of quartz was highly prized in royal and religious jewellery. Kings, priests and warriors wore amethyst for its beauty and perceived protective properties, making it one of the most historically significant purple gemstones.
Ancient Beliefs and Spiritual Energy
Amethyst has long been associated with spiritual clarity, inner peace, and calm. Ancient cultures believed the stone promoted wisdom, intuition, and sobriety.
In metaphysical traditions, amethyst is linked to the third eye and crown chakras. It is thought to enhance meditation, encourage emotional balance, and foster mental clarity, making it a highly valued gemstone in spiritual practices.
Modern Symbolism and Collectibility
Today, amethyst is celebrated for its striking violet colour and affordability compared to precious gemstones. Collectors prize fine, deeply saturated amethyst for its colour intensity and transparency.
Amethyst is the birthstone for February and symbolises peace, stability, and courage. Its enduring appeal lies in its combination of beauty, affordability, and spiritual significance, making it popular for jewellery and collection pieces worldwide.
Amethyst Properties & Composition
Explore Amethyst’s Hardness, Lustre, Transparency, Refractive Index and Specific Gravity.
Understanding amethyst’s gemological properties helps determine durability, brilliance and suitability for daily wear.
Colour Range
Amethyst occurs in shades of: Light violet, Medium purple, Deep reddish-purple. The most valuable stones display strong, uniform colour without brown or grey undertones.
Chemical Formula
Amethyst has the SiO₂ chemical formula and is a member of the quartz family. Trace elements, primarily iron, give amethyst its distinctive purple colour.
Composition
Silicon & Oxygen – trace elements (iron) influence the violet colour.
Refractive Index
1.544 – 1.553, giving amethyst its characteristic sparkle and light performance.
Lustre
Vitreous, producing a clear, glass-like lustre.
Moh's Hardness & Durability
Amethyst has a Mohs hardness of 7, making it suitable for most jewellery including rings, pendants, and earrings. While durable, it can chip if struck sharply along internal fractures or inclusions.
Crystal System
Its crystal system is trigonal, forming six-sided prisms often terminated with pyramidal faces.
Transparency
Transparent to translucent, with high clarity in fine-quality stones.
Mineral Family
Amethyst belongs to the quartz (silicate) mineral family.
Specific Gravity
2.65, typical of quartz gemstones.
Amethyst Origin, Treatment & Care
Amethyst is a violet variety of quartz, naturally formed in geodes, veins, and hydrothermal deposits. Knowing its origin and any treatments applied is important for accurate valuation. With proper care, amethyst remains durable and suitable for everyday jewellery wear.
Major Origins
Major sources include Brazil, Uruguay, Zambia, Madagascar, and the United States (Arizona). Brazil remains the leading producer, supplying much of the gem-quality material.
Treatments
Most amethyst is sold untreated. Some stones may undergo heat treatment to deepen colour or reduce brownish tones. High-quality stones are valued for their natural, vibrant purple colour.
Care and Cleaning
Avoid harsh chemicals and prolonged exposure to sunlight, which can fade colour. Clean with warm water, mild soap, and a soft brush. Store separately from harder gemstones to prevent scratches.
How Amethyst Quality & Value Are Determined
Understanding how amethyst is graded helps buyers identify true quality. Value is influenced by four primary factors: colour, clarity, cut, and carat weight. Optimal combinations of these elements create the most attractive and desirable gemstones.
Amethyst Colour and Inclusion Quality
Colour is the most critical factor in determining amethyst value. High-quality amethyst typically displays:
- Rich medium to deep purple hues
- Even colour distribution without brown or grey tones
- Vibrant saturation with strong light return
Stones that are too light or unevenly coloured appear less valuable, while deeply saturated stones with uniform tone command higher prices.
Amethyst Clarity Explained
Amethyst is generally expected to have excellent clarity. High-value stones are:
- Eye-clean (no visible inclusions to the naked eye)
- Free from fractures and surface blemishes
- Transparent with strong light transmission
Inclusions, cloudiness, or internal fractures can reduce brilliance and durability.
Amethyst Cut and Pattern Orientation
Cut enhances sparkle, symmetry, and overall appeal. Important considerations include:
- Accurate facet alignment
- Proportional depth and symmetry
- Smooth, high-quality polish
Amethyst is commonly cut into oval, round, cushion, and pear shapes. Precision cutting maximises light performance and colour intensity.
Amethyst Carat Weight and Size Impact
Larger amethyst stones are more common than precious gemstones, but colour and clarity remain decisive.
When comparing stones:
- Smaller stones with superior colour and clarity can be more valuable than larger, less vibrant ones
- Large, evenly coloured amethyst is increasingly sought after for statement pieces
The Balance of the Four Factors
True value comes from the combination of colour, clarity, cut and carat weight.
A premium amethyst gemstone should display:
- Deep, even purple colour
- Eye-clean clarity
- Well-proportioned, precise cut
- Balanced size with good brilliance
When these elements align, amethyst becomes stunningly beautiful and a gemstone to be treasured.
Amethyst Price Per Carat
Amethyst is generally affordable, though fine-quality deep violet stones fetch higher prices, particularly in larger sizes.
Estimated Average International Amethyst Prices (Good Quality) – Per Carat
| Weight | ZAR | USD | EUR | JPY | GBP | AUD | CAD | CHF | CNY | HKD | NZD | Market Signal |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Under 1 carat | Size is widely available | |||||||||||
| 1 - 2 carat | Increasingly popular | |||||||||||
| 2 - 3 carats | Strong demand | |||||||||||
| 3 - 4 carats | Remain desirable | |||||||||||
| 4 - 6 carats | Scarcer in larger sizes | |||||||||||
| 6 - 8 carats | Exceptional stones |
Amethyst FAQs
Is amethyst a natural gemstone?
Yes, amethyst is a naturally occurring purple variety of quartz, formed in geodes, veins, and hydrothermal deposits.
Why does amethyst vary in colour?
Colour is influenced by iron and natural irradiation within the quartz structure. Variation can occur from pale violet to deep purple.
Are amethysts treated?
Some amethyst may be heat-treated to enhance colour, but most commercial stones are sold natural. Treatment should always be disclosed.
Where are the best amethysts sourced?
Brazil and Uruguay are the main sources of high-quality amethyst, with Zambia producing deep violet stones prized for jewellery.
Can amethyst be worn daily?
Yes, amethyst is durable enough for everyday wear, but care should be taken to avoid sharp impacts and prolonged sunlight exposure.
What determines the value of amethyst?
Colour is the most important factor, followed by clarity, cut, and carat weight. Deep, evenly saturated purple stones with eye-clean clarity are most valuable.
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AMETHYST?
Amethyst’s rich violet colour, historical significance, and spiritual associations make it an ideal gemstone for jewellery and collections. Its durability, affordability, and captivating charm ensure it remains a favourite among collectors and designers alike. Ideal for rings, pendants, earrings, and bespoke creations, amethyst combines elegance, versatility, and lasting appeal.
Vibrant Purple
Calming Energy
Spiritual Balance
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Choosing between two beautiful gemstones can be challenging. Our professional Gemstone Comparison Guides help you clearly understand the differences between popular gemstones so you can make a confident and informed choice.
Each comparison explores the key factors that influence gemstone quality and value, including colour, clarity, durability, rarity and typical treatments. You will also learn how similar-looking gemstones differ in appearance, composition, hardness and more.
HERE IS ALL THE PROFESSIONAL INFORMATION YOU NEED
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