Largest Beryl natural cat's eye

The world’s Largest Beryl natural cat’s eye is called The Eye of Hope. This amazing gemstone weighs a massive 854.95 carats, which is about 170.99 grams. It located in Beruwala, Sri Lanka, and was verified by the Guinness World Records on January 5, 2024. It was discovered in Madagascar.

This gemstone is an oval-shaped cabochon, meaning it has a smooth, rounded shape without any facets. The Eye of Hope is known for its unique color, which is a yellowish-green. It also has a remarkable silvery chatoyant effect, which makes the stone resemble the eye of a cat. This effect moves across the surface of the gemstone when it is rotated, creating an illusion of a glowing line, adding to its beauty.

What is a Cat’s Eye?

A cat’s eye is a rare optical phenomenon found in some gemstones. It is caused by the reflection of light from fibrous inclusions within the stone. These fibers create a band of light that moves as the gemstone is turned, resembling the slit eye of a cat. This effect is most noticeable in cabochon-cut stones. Cat’s Eye gemstones can be found in various types, including chrysoberyl and beryl.

Beryl Cat’s Eye & Chrysoberyl Cat’s Eye

Beryl is a mineral that can form many different kinds of gemstones, including emerald and aquamarine. However, when beryl exhibits the cat’s eye effect, it is called Beryl Cat’s Eye. Chrysoberyl Cat’s Eye is another type of gemstone that commonly displays this effect. While both stones can appear similar in color and shape, chrysoberyl cat’s eye is more commonly found and is known for its more intense cat’s eye effect.
The Eye of Hope is a remarkable example of a Beryl Cat’s Eye. Its size and chatoyant effect make it a one-of-a-kind gem.

Disclaimer: This record may break from time to time, but it is currently recognized as the largest natural green beryl cat’s eye as per the Guinness World Records related to Sri Lanka.