Abstract: In this paper, the surfaces of both typical golden pearls and dyed golden pearls were observed under the transparent light. The fluorescence spectra, Raman spectra and UV-Vis reflection spectra were employed to characterize them. The dyed golden pearls show obvious signs of dyeing with agglomerate or flake. In the Raman spectra, the stable typical aragonite peaks are observed for the golden pearl while there are many fluctuations with motley peaks and burrs for the dyed golden pearl. In addition, the characteristic peak of the golden pearl appears around 355 nm in the UV-Vis reflection spectra. However, there is an added peak around 450 nm besides the characteristic peak for the dyed golden pearl from the foreign inorganic or organic dyes. The golden pearl exhibits only one excitation at 376 nm showing the emission peak centering around 472 nm under the excitation at 376 nm UV light. However, the dyed golden pearl exhibits two excitations at 372 nm and 450 nm, respectively corresponding to the emission centers at 436 nm and 493 nm