Doveggs 3.51ct cushion E Color VS1 Clarity Excellent cut lab diamond stone (Sold by #22474)Stone size: 3. 51ct 9. 09x8. 40x5. 28mm) Color grade: E Clarity: VS1 Cut: Excellent Kindly be aware that this lab grown diamond does not include a certificate. However, if you wish to obtain a certificate through North America Gemological Laboratory (a third party authentication)you can do so for an additional fee of $50. Your diamond will be sent to them for certification and then forwarded to you with an estimated turnaround time of approximately 8