In the upper echelons of gemology, some stones are rare, while others are legendary. We are honored to present a true "unicorn" of the mineral kingdom: a 20.05-carat Natural Cat’s-Eye Alexandrite. This specimen is not merely a gemstone; it is a masterclass in the complexity of nature, possessing two of the world's most sought-after optical phenomena in a single, massive crystal.
This extraordinary chrysoberyl exhibits a "dual phenomenon" that places it among the rarest objects on Earth. First is the "Alexandrite Effect"—the remarkable ability to change color from a sophisticated yellowish-green in daylight to a warm, resonant yellowish-brown under incandescent light. Intersecting this color shift is "Chatoyancy," or the cat’s-eye effect. A sharp, luminous band of light tracks across the stone’s surface, a result of perfectly aligned needle-like inclusions within the 20-carat volume.
While fine Alexandrite is typically found in sizes under one or two carats, this stone commands a staggering 20.05 carats. Its dimensions—13.72 x 13.37 mm—give it a presence that is impossible to ignore. The double cabochon cut was specifically engineered to maximize the depth of the color change while providing the necessary curvature for the cat's-eye to "wink" with every gesture of the hand.
A gem of this magnitude requires a vessel of equal prestige. The stone is securely cradled in a handcrafted Pt900 Platinum mounting. Flanking the center stone is a structural arrangement of 1.75 carats of high-grade diamonds, which provide a brilliant, icy contrast to the shifting hues of the Alexandrite.
For the connoisseur, this stone represents a strategic asset. Alexandrite is consistently among the most valuable gemstones in the world due to the exhaustion of classic mines and the increasing global demand for phenomenal stones. A 20-carat specimen, particularly one displaying both a sharp "eye" and a distinct color change, is a legacy piece suitable for the world’s most prestigious private collections or institutional displays.
This masterpiece is accompanied by GIA Report 6542519372, providing the global gold standard of assurance. The report confirms its identity as a Natural Cat's-Eye Alexandrite, ensuring its pedigree and natural origin
are documented by the world's foremost authority in gemology.
This is a rare opportunity to own a piece of Earth's history. It is a stone for the individual who demands the unique, the impossible, and the incomparable. It is, quite simply, one of the most significant phenomenal gemstones available on the market today.
1-Main stone :
20.05ct Alexandrite Cat’s Eye
2-Surround stone:
Natural Diamond: 1.75ct
4-Jewelry:
PT900 Gold
Weight : 16.9Gram
Ring size 13#
Certificate: GIA
