Single crystals of Violet dye doped Glycine Hydro Bromide (VGHB) has been successfully grown by the slow evaporation technique from the aqueous solution. Good optical quality Single crystal of VGHB with well dimension is obtained. The structural characterization of the grown crystals was confirmed by Powder X-Ray diffraction. The modes of vibration of the molecules and the presence of functional groups were identified using FT-IR technique. The UV - visible spectrum proves that the grown crystals have wide optical transparency in the entire visible region. Its mechanical hardness were estimated by Vickers micro hardness tester. The Meyer index value (n) indicates the grown crystal belongs to soft-material category. The stiffness constant (C11) was computed using the Wooster__ampersandsign#39;s empirical relation.