Duration of Effectiveness of Gemstones
| Gem | Effective for |
|---|---|
| Ruby | 4 Years |
| Pearl | 2 Years, 1 Month, 27 Days |
| Coral | 2Years, 3 Days |
| Yellow Sapphire (Topaz) | 4 years, 4 months, 18 days |
| Emerald | 3 years |
| Diamond | 4 years, 4 months, 18 days |
| Blue Sapphire | 5 years |
| Hessonite | 3 years |
| Cat's Eye | 3 years |

