1, beautiful: this is the first condition, which requires bright and pure colors, transparency and luster, or special optical effects such as color change, color change, light display or cat's eye.
2. Durability: it is required to have the durability of maintaining splendor and luster, that is, it must be hard, wear-resistant and chemically stable.
3. Rare: it means that the output is scarce.
Therefore, there is no best jewelry worth collecting, only your favorite. I hope you can find a jewel you like, Wan Wen.