Pirastro Evah Pirazzi Gold Rosin

This is a highly rated rosin. It's good quality, doesn't crack, applies quite well, doesn't generate wasteful dust etc.

Make sure it suits your playing style and instrument though. I do prefer mellower, warmer, deeper tones, but wouldn't say this rosin is suitable for cellos at all. I think this rosin was meant to be used on violas and violins, but being awesome quality it works /okay/ for cellos too.

In summary, superb rosin that sticks well and projects fairly loudly even with a soft bow. Try it out first before stacking large quantities if you're playing the cello.