Both. According to the product description released by official website, Tongling Blue Flame is the only distributor, and bf is one of the symbols of Lan Huo, which is very valuable for wearing and collecting. Leysen Lai Shen Tong Ling is a brand upgraded from the Belgian royal jewelry brand Leysen, which is strategically invested by Tong Ling Jewelry, including diamond ring, marriage proposal ring, necklace bracelet and pendant earrings.