Faraday rotation of the plane of polarization of light in solutions of C₆₀ in orthoxylene has been experimentally studied. The Verdet constant of solutions with the concentrations 5 mg/mL and 2 mg/mL and of the pure solvent has been measured at the wavelength 633 nm. The contribution of the fullerene molecules to the Verdet constant V is separated out, the value of this contribution is converted to concentration of the C₆₀ crystal, and the Verdet constant for solid fullerene is found to be V = 0.61 deg/Oe·m. This value agrees well with estimates of the constant V obtained from analysis of the data on the dispersion of the refractive index of C₆₀, films, suggesting that the effect of the intermolecular interaction on the electronic spectrum of the fullerene molecules is weak.