Mastering Amethyst Quality Assessment

How Are Amethysts Graded?

Unlike other gemstones, the price of an amethyst isn’t determined by its carat weight. Instead, gemologists grade amethysts based on their color, while also considering clarity and the presence of inclusions.

How to Grade Amethyst Purple Color

The quality and value of an amethyst are primarily determined by its color grade. Although all amethysts are purple, their shades can vary significantly, ranging from a light lilac to deep purple with red and blue undertones. These particular gems are known as Siberian Amethysts.

Typically, the deeper the color, the higher the quality of the amethyst. Siberian Amethysts are the most valuable. Conversely, amethysts that are very light or exhibit light and dark patches are less desirable and, therefore, less costly.

How to Grade Amethyst Clarity

Amethysts are also graded based on clarity. As Type 2 gemstones, they often contain inclusions (internal imperfections). However, many purple quartz stones are eye-clean, meaning any inclusions are not visible to the naked eye.

Various types of inclusions can be found in amethysts, some more common than others. Here’s a brief summary:

Common Inclusions:

• • Fissures or feathers: Internal cracks.

• • Negative crystals: Small specks of foreign material trapped within the gem.

• • Needles: Long, thin crystals resembling needles.

Other Inclusions:

• • Pinpoint: Minuscule mineral crystals barely visible within the stone.

• • Indented Natural: Small dimples on the outer surface.

• • Chip: Small nicks, usually found at the gem’s edge.

• • Cavity: Small and sometimes deep hollows within the gem.

• Etch Channel: Hollow tunnels that extend from the surface to the stone’s interior.

The Amethyst Grading Chart

Gemologists use an amethyst grading scale to classify these stones. Here’s a quick guide to the main grading levels:

AAAA Grade

AAAA graded amethysts are of the highest quality, usually dark purple with a brilliant cut and no inclusions visible to the naked eye.

AAA Grade

AAA grade amethysts are medium to dark purple. Small inclusions might be visible upon close inspection.

AA Grade

These amethysts are typically pale to medium purple and may contain more visible inclusions, but still retain their beauty.

A-B Grade

A or B graded amethysts are pale purple with more noticeable inclusions.

More About Amethyst Grades

Amethysts come in various price ranges. While grading can help determine a gem’s authenticity and value, examining the stone itself is crucial. High-quality amethysts aren’t the only beautiful options available.

Personal preference plays a significant role in choosing jewelry. Assess the color and clarity, and check for any noticeable imperfections. Heat treatment is a common and safe method used to enhance gemstone appearance by removing unwanted brownish inclusions or lightening the color, making it a permanent and effective improvement.

Why Not Treat Yourself to an Amethyst?

Amethyst is an affordable, striking alternative to traditional diamonds, offering a unique appeal. Consider a stunning amethyst white gold ring or a delicate gold chain with an amethyst pendant. Amethyst wedding rings present a stylish and modern choice. Whatever the occasion, expert gemologists can help craft the perfect piece of jewelry.