Ploy Center Co., Ltd. is one of the leading gemstone companies in Thailand, specializing in Burmese rubies, Ceylon blue sapphires, and Madagascar blue sapphires. We are a gemstone wholesaler and exporter that offers the most extensive collection of gemstones in every quality, shape, and size. No matter what quality you are looking for, from commercial quality all the way up to gem quality, we can meet your needs. Steady supply, unbeatable prices, and personalized service always exceed our customer's expectations.