Buy Natural Alexandrite Cat's Eye Gemstones Online
Alexandrite cat's eye is one of the rarest gemstones in existence — combining two of the most extraordinary optical phenomena in the gem world in a single stone. The dramatic color change of alexandrite and the sharp chatoyancy of cat's eye chrysoberyl occur simultaneously, creating a gemstone that very few collectors ever have the opportunity to own.
Read our detailed alexandrite cat's eye guide or explore our natural alexandrite cat's eye collection, featuring carefully selected stones sourced directly from Brazil and India with full treatment and origin disclosure.
What Makes Alexandrite Cat's Eye Exceptional
Standard alexandrite displays a color change from green to red. Standard chrysoberyl cat's eye displays chatoyancy — a sharp, moving band of light. Alexandrite cat's eye does both simultaneously. Under daylight, the stone appears green to purplish-green with a sharp eye running across its surface. Under incandescent light, the same stone transforms to purplish-pink or purplish-red — while the eye remains sharp and visible.
Alexandrite cat's eye belongs to the broader chrysoberyl family (view collection) alongside alexandrite (view collection) and chrysoberyl cat's eye (view collection).
Color Change in Alexandrite Cat's Eye
The color change follows the same principle as faceted alexandrite — driven by chromium in the crystal structure. The daylight color is typically purplish-green to green, shifting to purplish-pink or purplish-red under incandescent light. Brazil and India produce the finest alexandrite cat's eye material. Brazilian stones tend to show the strongest and most vivid color change, while Indian material offers a very good transition at slightly more accessible price levels.
Eye Quality and the Cat's Eye Effect
The eye is formed by parallel rutile needle inclusions within the crystal — the same mechanism as in chrysoberyl cat's eye (view collection). The stone must be cut as a cabochon to display the effect. The sharpness, centering, and contrast of the eye are primary value factors alongside the color change quality. A fine alexandrite cat's eye displays a sharp, well-centered, high-contrast eye combined with a strong, clean color change.
Market Availability and Collector Appeal
Alexandrite cat's eye is one of the least commercially available gemstones in the market. Very few dealers carry genuine natural alexandrite cat's eye because the stones require significant investment and long holding periods to find the right collector buyer. GemPiece stocks alexandrite cat's eye out of genuine passion for rare natural gemstones and as a service to collectors seeking truly exceptional material.
Natural vs Lab-Grown
As with all alexandrite, the market contains lab-grown material. Always insist on laboratory certification from a recognized institution — GIA, Gübelin, AIGS, GRS, or GIT. At GemPiece, all alexandrite cat's eye is 100% natural with full origin disclosure.
Hardness and Durability
Alexandrite cat's eye shares the 8.5 Mohs hardness of all chrysoberyl varieties, making it highly durable and suitable for all jewelry applications including rings.
Explore Related Color Change Gemstones
Explore other natural color change gemstones including
color change garnet (view collection) and
color change sapphire (view collection).
Explore Related Cat's Eye Gemstones
Explore other natural cat's eye gemstones including
moonstone cat's eye (view collection),
tourmaline cat's eye (view collection), and
sillimanite cat's eye (view collection).
Frequently Asked Questions
What is alexandrite cat's eye?
Alexandrite cat's eye is an extremely rare variety of chrysoberyl that displays both color change — from green to red under different light sources — and chatoyancy simultaneously in a single stone.
How rare is alexandrite cat's eye?
Alexandrite cat's eye is among the rarest gemstones in the world. Very few dealers carry genuine natural material, and fine quality specimens with strong color change and a sharp eye are exceptionally difficult to source.
Which origin produces the best alexandrite cat's eye?
Brazil produces the finest material with the strongest color change. India produces very good quality at slightly lower price levels. Both origins are considered premier sources.
How is alexandrite cat's eye different from regular chrysoberyl cat's eye?
Regular chrysoberyl cat's eye displays only chatoyancy without color change. Alexandrite cat's eye displays both chatoyancy and a dramatic color change from green to red, making it significantly rarer and more valuable.
Does GemPiece carry alexandrite cat's eye?
Yes. GemPiece stocks alexandrite cat's eye from Brazil and India out of genuine passion for rare natural gemstones. All stones are 100% natural with full treatment and origin disclosure.
Is alexandrite cat's eye a good investment?
Fine alexandrite cat's eye with strong color change and a sharp eye is among the most genuinely scarce gemstones available. Its combination of rarity, dual phenomena, and limited supply makes it highly attractive for serious collectors.
