Baolong Jewelry Colored Gemstone Ring Baolong Jewelry Colored Gemstone Ring Emeralds appeared in people’s lives a long time ago, and emeralds are the oldest colored gemstones. Do you know the story of this emerald that people love? The editor of Baolong introduces you the oldest colored gemstone-the majestic emerald. Smaragd, emeralde, is derived from the […]