I just received a 1.25 carat diamond that is rated by GSI (Gemological Science International) as Color I, Clarity SI2, Policy and cut as very good. I am not convinced that we got value for our dollar. It feels like my husband fell for their "retail price is $15k, your price is $10k" and stopped looking from there. I question whether any jeweler would take a 30% hit right off the top but when I price out similar rings online, $10k is still high. Granted little overhead with places like Blue Nile, but still. I am really interested in hearing feedback regarding GSI and it's value.