Sfe Gold is a Safir brand. SFE means that this product belongs to Seyfel's family, and each jewelry company has its own seal, just to distinguish products. Extended knowledge: Safir jewelry brand belongs to Shenzhen Safir Jewelry Co., Ltd. (Safir/Safir Jewelry for short). Safir jewelry brand was established in 1993, which mainly deals in solderless gold products, including diamonds, emeralds, colored treasures, k-gold, pearls, etc., integrating R&D, design and production.