It's true. According to Archie's inquiry. Com, Kim Jong Kook Silver Jewelry Testing Center is a legally authorized jewelry and jade quality testing institution, which has passed the qualification certification of the national product quality supervision and inspection institution as a third-party testing institution, and is a professional institution for testing jewelry, jade and precious metal jewelry in China. So, Kim Jong Kook Silver Jewelry Testing Center is real. Jewelry has a broad sense and a narrow sense. Jewelry in a narrow sense refers to jade products, while jewelry in a broad sense should include jewelry, handicrafts or other treasures made of gold, silver and natural materials (minerals, rocks, organisms, etc.). ) and has certain value. So there was a saying of "gold, silver and jewels" in ancient times.