No, according to relevant information, the QR code of gia certificate starts with 2, which means that this is an official certificate issued by GIA Appraisal Center, not a second-hand certificate. The number after 2 indicates the type and format of the certificate. For example, 2. 1 means standard GIA certificate, 2.2 means full-color GIA certificate, 2.3 means wearable GIA certificate, 2.4 means customized GIA certificate, 2.5 means jewelry appraisal report, 2.6 means GIA jewelry appraisal report and 2.7 means GIA certificate.