GQ inspired classic round royal blue cateye stone cufflink in gold frame. Cat eye stone is gemstone that displays a thin band of reflected light on its surface when cut as a cabochon. Cabochon is a convex style of cutting gems. The optical effect, known as chatoyancy, is caused by the reflection of light from very thin, closely spaced filaments in parallel arrangement within the stone. This cats eye stone is set in gold frame which makes it look more richer.