## Common ground
All options refer to types of watch chains classified by material and decorative characteristics.
## Options at a glance
**7113 – Precious metal or clad**
- **Defining trait:** Made from precious metals (e.g., gold, silver) or metal coated with precious metal.
- **Typical examples:** Gold-plated chain, sterling silver watch chain.
- **Best fit when:** The chain is made of or coated with gold, silver, or other precious metals.
**7116.10 – Natural or cultured pearls**
- **Defining trait:** Features natural or cultured pearls as primary material.
- **Typical examples:** Pearl-studded watch chain, strand of pearls with clasp.
- **Best fit when:** The chain is primarily made of pearls, not metal.
**7116.20 – Precious or semi-precious stones**
- **Defining trait:** Incorporates gemstones (e.g., diamonds, sapphires, amethysts) as key material.
- **Typical examples:** Diamond-set watch chain, ruby-accented chain.
- **Best fit when:** The chain features embedded or set stones, not just metal.
**7117 – Imitation jewellery**
- **Defining trait:** Made of non-precious materials mimicking luxury items (e.g., plastic, base metal with coating).
- **Typical examples:** Rhinestone-studded chain, faux gold-plated chain.
- **Best fit when:** The chain looks like precious jewelry but uses low-cost, imitation materials.
## Key differences
| Feature | 7113 (Precious metal) | 7116.10 (Pearls) | 7116.20 (Stones) | 7117 (Imitation) |
|-----------------------|------------------------|------------------|------------------|------------------|
| Material base | Precious metal | Pearls | Gemstones | Base metal/plastic |
| Value & authenticity | High | Medium (natural) | High | Low |
| Visual hallmark | Metallic sheen | Smooth, lustrous | Sparkling, colored | Imitation sparkle |
## How to choose
- Is the chain made of gold, silver, or metal clad with precious metal? → 7113
- Does it feature pearls as the main material? → 7116.10
- Are there real gemstones (diamonds, sapphires, etc.) set into it? → 7116.20
- Is it clearly made of fake or low-cost materials (e.g., plastic, rhinestones)? → 7117
## Overlaps & pitfalls
A chain with pearls and gold clasps could fit both 7113 and 7116.10. A stone-set chain with gold plating may overlap 7113 and 7116.20. **Priority rule:** Use the dominant material—pearls or stones over metal, real gemstones over imitation. If unclear, base classification on the product’s main visual and functional feature