Understanding the physical differences between solid and hollow 18K gold chains is essential for evaluating long-term heirloom longevity versus lightweight affordability.
1. Solid vs. Hollow Gold Engineering
| Metric / Feature | Solid 18K Gold Construction | Hollow (Electroformed) Gold |
|---|---|---|
| Internal Core Structure | 100% Solid 18K gold cross-section | Hollow interior cavity (copper core dissolved in acid) |
| Wall Thickness | Full diameter (1.0mm – 6.0mm solid) | Microscopic shell (0.05mm – 0.15mm wall) |
| Crush / Dent Resistance | Immune to crushing; can be polished repeatedly | High risk of permanent crushing under impact |
| Heirloom Repairability | Easily soldered, sized, and polished by goldsmiths | Extremely difficult to laser solder without collapsing |