Color change garnet is especially difficult to photograph. Not only does the color change as a
result of illumination under different kinds of light sources but, it also varies as a result of
geographical location and time of day. Pictures also appear to differ because of technological
obstacles like screen and graphic resolutions. We try to minimize the variations and display
photographs which represent our best efforts at trying to show the most accurate colors with the
equipment available to us.
The color of the color change garnets is primarily a function of the time of day and the type of lighting. Light is measured by color temperature. Cool daylight above 5500K will highlight the blue or the green colors while warm daylight around 3500K will make the stones appear red. Candle light is the ideal incandescent light and it was from candle lights that color change in gemstones was first observed. Our photographers use daylight 5500K and incandescent lights 3300K to highlight the color change. A typical color change garnet shot will maximize the observable color change by obstructing any unintentional ambient light so that the resulting image is a function of a singular unmixed light source. Early morning light will make the stones look greenish or bluish while afternoon light will make them appear red.
Color change is also related to the distance of the light source from the stone as well as the angle of the light to the stone. For observing the red color, the penlight should be 2 to 3 inches from the stone and the strongest affect will occur if the light is directed across the table.