Comparison of the colors of diffuse clusters with simple stellar population (SSP) models of Bruzual and Charlot (2003). Solid lines represent isometallicity SSP tracks showing the evolution of (﹩g-z﹩) with age from 1 to 15 Gyr. The vertical dashed line marks an age of 13 Gyr. Horizontal dotted lines mark the median colors of the DSC populations from Table 1. With the exception of VCC 9, which has the bluest color, most DSC populations must either have old ages (>5 Gyr) or metallicities substantially in excess of solar.