There are a lot of guys looking for the perfect diamond engagement ring right now. Essentially, you’ve got a month until Valentine’s Day, right? We’ll be putting together some buying tips to help you through the process.

BridePOP, the wedding website, helps its readers with all things weddings. Here they help with diamond purchases and talk up GIA. “Purchasing a diamond is a big step and finding the right one to complete your wedding ring can be pretty intimidating.

GIA’s mission statement says it perfectly: Ensure the public trust in gems and jewelry by upholding the highest standards of integrity, academics, science, and professionalism through education, research, laboratory services, and instrument development.

But how does that translate to you—the guy who’s about to buy a diamond for the love of his life?