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Chrysoberyl Color Grading Guide

Welcome to our comprehensive guide on the Chrysoberyl Color Grading Guide, one of the most fascinating and sought-after gemstones in the world. Whether you’re a gemstone collector, a jeweler, or simply someone with a passion for beautiful minerals, understanding the Chrysoberyl Color Grading Guide can enhance your appreciation and knowledge of this stunning gemstone.

Chrysoberyl Color Grading Guide

What is Chrysoberyl?

Chrysoberyl is a durable and brilliant gemstone that is composed of beryllium aluminum oxide. It is renowned for its unique optical properties, which can include a remarkable phenomenon known as chatoyancy (or the “cat’s eye” effect) and a color-changing variety known as Alexandrite. Chrysoberyl typically ranges in color from yellow to green, with its most prized variations exhibiting vibrant hues and exceptional clarity.

The Importance of Color Grading

Color grading is a crucial aspect of gemstone valuation. It provides a standardized method for assessing and comparing the quality of gemstones based on their color attributes. For Chrysoberyl, color grading can significantly impact its market value, aesthetic appeal, and desirability.


5.37 Ct. Madagascar No Enhancement Yellow Chrysoberyl

4.13 Ct. Ceylon (Sri Lanka) Heat Treated Greenish Brown Chrysoberyl

3.21 Ct. Ceylon (Sri Lanka) Heat Treated Yellowish Green Chrysoberyl

Chrysoberyl Color Grading Chart

To assist enthusiasts and professionals alike, we’ve developed a detailed color grading chart for Chrysoberyl. This chart breaks down the gemstone’s color variations into distinct categories, providing a visual guide to understanding its nuances.

1. Yellow Chrysoberyl

  • Pale Yellow: These stones have a delicate, light yellow hue. While less intense, they are still valued for their clarity and brilliance.
  • Golden Yellow: This is a richer, more saturated yellow. Golden yellow Chrysoberyl is highly prized for its vibrant color and exceptional light performance.
  • Brownish Yellow: These stones have a yellow hue with brown undertones. They are less common and often attract collectors interested in unique variations.

1.68 Ct. Ceylon (Sri Lanka) No Enhancement Yellow Chrysoberyl

2.34 Ct. Ceylon (Sri Lanka) No Enhancement Yellow Chrysoberyl

1.37 Ct. Madagascar No Enhancement Yellow Chrysoberyl

2. Green Chrysoberyl

  • Pale Green: Light green Chrysoberyl is appreciated for its soft, pleasing color and excellent clarity.
  • Mint Green: These stones exhibit a fresh, vivid green color reminiscent of mint leaves. They are highly sought after for their striking appearance.
  • Deep Green: Deep green Chrysoberyl showcases a rich, intense green hue. This variation is rare and commands a higher price in the market.

30.97 Ct. Madagascar Heat Treated Green Chrysoberyl

6.64 Ct. Ceylon (Sri Lanka) Heat Treated Green Chrysoberyl

1.08 Ct. Ceylon (Sri Lanka) No Enhancement Green Chrysoberyl

3. Alexandrite (Color-Change Chrysoberyl)

  • Daylight Color: Under natural daylight or fluorescent light, Alexandrite typically displays a green to bluish-green color. The intensity of this color can vary, with more vivid hues being more valuable.
  • Incandescent Light Color: When viewed under incandescent light, Alexandrite transforms to a red or purplish-red color. The degree of color change and the saturation of the red hue are critical factors in determining the stone’s quality and value.

4. Cat’s Eye Chrysoberyl

  • Color and Chatoyancy: Cat’s Eye Chrysoberyl can occur in various colors, including yellow, green, and brown. The defining feature of these stones is the “cat’s eye” effect—a sharp, narrow band of light that moves across the surface of the stone as it is rotated. The strength and sharpness of this effect, along with the stone’s color, are key grading factors.

13.33 Ct. Ceylon (Sri Lanka) No Enhancement Greenish Yellow Chrysoberyl

19.10 Ct. Ceylon (Sri Lanka) No Enhancement Greenish Yellow Chrysoberyl

16.92 Ct. Ceylon (Sri Lanka) No Enhancement Yellowish Green Chrysoberyl

Factors Influencing Color Grading

Several factors influence the color grading of Chrysoberyl, including:

  • Hue: The primary color of the gemstone (e.g., yellow, green).
  • Tone: The lightness or darkness of the color.
  • Saturation: The intensity or purity of the color.
  • Clarity: The presence or absence of inclusions that can affect the stone’s appearance and color.

Understanding the color grading of Chrysoberyl is essential for anyone involved in the gemstone industry or hobby. This knowledge not only helps in assessing the value and quality of the stones but also enhances the appreciation of their natural beauty. Whether you’re looking to buy, sell, or simply admire these gems, our color grading chart provides a valuable reference to navigate the captivating world of Chrysoberyl.

Interested in how the 4Cs come together to define the beauty of Chrysoberyl? Learn more in 4Cs Work Together in Chrysoberyl.

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