I've often shopped for tennis bracelets over the years. Never finding one that really worked size wise and within budget. But in my years of off and on browsing, all the stores except for one - do not come with GIA cert. Diamonds are pretty small in my price range. Yesterday I found a bracelet I'm intrigued with, tcw around 3.50. Would you purchase a tennis bracelet without getting a GIA cert or knowing exact specs of stones? It costs around $4000. Thanks!