[Objective] Provides is a water-absorbing agent which exhibits high gel stability, little variation in gel stability amongst different particle sizes and good water absorption characteristics. [Solving Means] Disclosed is a particulate water-absorbing agent comprising a water-absorbing resin as a main component and a chelating agent, the water-absorbing resin having particles with a particle diameter of less than 300 µ m and particles with a particle diameter of 300 µ m or more but less than 850 µ m, as specified by a JIS standardized sieve, wherein an amount of the chelating agent is 0.001 to 5 parts by weight per 100 parts by weight of a solids content of the water-absorbing resin and satisfies Formula (1): 1.2 < C 1 / C 2 < 4.0
