1, market saturation: dzi beads are a common ornament, and there are a large number of dzi beads on the market, which leads to the price drop.
2. Material: The value of dzi beads is related to the material. If the materials used are of high quality, the value of dzi beads will also be affected.
3. Overflow of imitations: There are a large number of imitation dzi beads on the market, which reduces the value of dzi beads, because they are different from the real dzi beads in quality and value.