How Much Are Amethysts Worth? Factors That Affect Their Price

Amethyst, a captivating purple gemstone, has been a favorite of many for centuries. Known for its striking color and beautiful crystal formations, amethyst is a popular choice for jewelry, decorative items, and even as a collector’s item. But, how much is amethyst worth? To answer this question, it is essential to consider various factors that influence the value of amethyst. In this comprehensive guide, we will explore the physical properties, geographic origins, treatments, market demand, and the importance of grading and certification when determining amethyst’s worth.

Amethyst’s Physical Properties


Amethyst can be found in a range of purple shades, from pale lilac to deep violet, with reddish or bluish undertones. The deeper and richer the color, the more valuable the gemstone. Deep purple with minimal zoning (color variation within the stone) is considered the most desirable.


Clarity refers to the number and size of inclusions (internal flaws) or blemishes (external flaws) in a gemstone. Amethyst is a Type II gemstone, meaning it typically contains some inclusions.
The fewer inclusions an amethyst has, the higher its value. Eye-clean amethysts, where inclusions are not visible to the naked eye, are more valuable than those with visible inclusions.


The cut of an amethyst not only affects its shape but also how well it reflects light, revealing the stone’s inherent beauty.
Popular amethyst cuts include oval, round, cushion, and emerald shapes, among others.
A well-cut amethyst with excellent symmetry, proportion, and polish will command a higher price than a poorly cut stone, as it maximizes the gem’s color, clarity, and overall brilliance.

Carat Weight:

Carat weight measures the size of a gemstone. One carat is equal to 0.2 grams.
Larger amethysts are generally more valuable than smaller ones, but the price per carat may not increase linearly with size.
Amethyst is relatively abundant, so larger stones are not as rare as with some other gemstones. However, finding exceptionally large, high-quality amethysts can be challenging, and such stones will command a premium price.

Amethyst’s Geographic Origins

Major amethyst sources:

  • Brazil: The largest producer of amethyst, with mines in the states of Rio Grande do Sul, Minas Gerais, and Bahia. Brazilian amethyst is known for its beautiful medium to dark purple colors.
  • Uruguay: Known for producing deep purple amethyst, often with a reddish hue, making them highly desirable.
  • Zambia: African amethysts, primarily from Zambia, are prized for their rich, deep purple color with bluish undertones.

Influence of origin on price:

Amethyst from different sources may have slight differences in color, clarity, and overall quality, which can influence their value. While Brazilian and African amethysts are often considered more valuable due to their deeper colors, the overall quality of the stone is more critical than its geographic origin.

Rarity of specific sources:

Some amethyst deposits are rarer than others, such as those from Russia, South Korea, and Arizona, USA. These sources can produce unique amethyst colors, and their rarity may contribute to a higher price.

Amethyst Treatments

Heat treatment:

Many amethysts undergo heat treatment to improve their color or transform them into citrine (yellow quartz) or prasiolite (green quartz). Heat-treated amethysts are generally less valuable than untreated stones, as their color may be less stable and could fade over time.


Some amethysts are subjected to irradiation to enhance their color or create unique shades, such as green or blue amethyst. Irradiated amethyst is generally less valuable than natural, untreated stones, as the treatment may be unstable, and the color may change or fade over time.

Synthetic amethyst:

Lab-created amethyst is made using a process called hydrothermal growth, resulting in synthetic stones that closely resemble natural amethyst and appearance. Synthetic amethyst is typically less expensive than natural amethyst, making it an affordable alternative for those seeking the beauty of amethyst at a lower cost.

Market Demand

The demand for amethyst can influence its price, with trends in jewelry and fashion playing a significant role. Amethyst’s popularity has remained relatively stable over the years, ensuring a consistent demand for the gemstone. Seasonal variations in demand can also impact amethyst prices. For example, amethyst is the birthstone for February, which may lead to increased demand during that month.

Amethyst Grading and Certification

Importance of professional grading:

A professional gemstone grader can accurately assess an amethyst’s color, clarity, cut, and carat weight, ensuring an unbiased evaluation of the gemstone’s quality. A grading report from a reputable organization can provide confidence in the value of an amethyst and help potential buyers make informed decisions.

Influence of certifications on price:

Amethysts with grading reports or certifications from reputable organizations may command higher prices, as they provide assurance of the gemstone’s quality and authenticity. Certifications can be especially important for high-value amethysts or those with unique characteristics, such as exceptional size or color.

Reputable gemstone grading organizations:

  • Gemological Institute of America (GIA)
  • American Gem Society (AGS)
  • European Gemological Laboratory (EGL)
  • International Gemological Institute (IGI)


Determining the worth of an amethyst involves considering a variety of factors, including its physical properties, geographic origin, treatments, market demand, and the importance of professional grading and certification. By understanding these factors, you can make more informed decisions when buying or selling amethyst and appreciate the unique beauty that this captivating gemstone has to offer.


  • Nathan Collins

    Having spent years working in the landscaping industry, Nathan Collins has cultivated a wealth of knowledge about the natural world. He is committed to helping others appreciate the beauty in their backyards, whether it's through identifying rare rocks and minerals or crafting the perfect landscape.

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