Definitely. The certificate is a reliable way to know if you’re purchasing a real diamond of high quality that is worthy of its price.For average-carat diamonds, it only costs around $50 to $100 per diamond to get a GIA report. For the GIA to examine it, you only need to submit your diamond to any of their laboratories. You can also have it sent via a trusted courier if it’s insured. Note that GIA only grades loose diamonds.