Domain: commerce (Product Selection and Specification)
Problem: I am looking at these two jade bracelets in the market and need help verifying their authenticity. Could you analyze the visual details in the photo to tell me which one is genuine and which one is fake? Please explain the key indicators regarding their color transitions and internal structures so I can avoid a bad purchase."
Answer: Top is genuine; bottom is fake. Top has natural color gradients and textures, while the bottom shows sharp dye boundaries and lost internal structure.