Iolite - the gem variety of the mineral cordierite - is one of fine jewelry's most intriguing colored stones for a reason that is specific to its optical properties: iolite displays strong pleochroism, appearing deep violet-blue in one direction, pale gray in another, and almost colorless in a third. The result is a stone that appears to change color as the viewing angle shifts or as the light source moves. At 0.99 carats in pear cut at approximately 0.89 inches long, the iolite drop earrings give this phenomenon enough surface area to be clearly visible and engaging throughout wear. A collector's gemstone earring for the customer who wants optical phenomena beyond the familiar and appreciates the distinct identity of uncommon fine gemstones.