Website Links We believe the more you know about jewelry, the more comfortable and pleasurable your purchase experience will be. Below are a few websites where you can start exploring the dazzling world of jewelry. Gold World Gold Council Platinum Platinum Guild International Palladium Palladium Information Diamonds Gemological Institute of America (GIA) American Gems American Gem Society (AGS) European Gems European Gem Laboratory (EGL) Colored Stones American Gem Trade Association (AGTA)