Stella is described as a "muted raspberry." It's a medium-dark, warm-toned pink with pink and red shimmer. It had almost semi-opaque color payoff with noticeable translucency that let the natural lip color come through. It applied evenly, smoothly, and wore well for four and a half hours. MAC Galaxy Rose (LE, $20.00) is brighter. MAC Astral (LE, $20.00) is darker. See comparison swatches / view dupes.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.