Answer
Aug 03, 2026 - 12:03 PM
The cat's eye effect in chrysoberyl, also known as chatoyancy, is a striking optical phenomenon where a sharp, luminous band of reflected light glides across the gemstone’s surface, resembling a cat’s slit eye. This effect results from fine, parallel inclusions or hollow tubes within the crystal, which precisely reflect incoming light in a concentrated line. The stone must be expertly cut en cabochon, with a smooth, rounded surface, to best showcase this mesmerizing effect.
