JEWELRY CERTIFICATE
GSL is the certificate it gives to diamonds and colored stones on jewellery. IGSL uses FTIR (Fourier Transform Infrared) technology, which can also be called the top model infrared technology developed for the purpose of examining the stones on the product, in all jewelry analysis. IGSL gives your gemstones unbiased and accurate results that you can trust.
Please insist on your IGSL jewelery certificate.