As mentioned on the Oculi page, each gem can have one of three different effects, depending onto which slot they are equipped. Each character has three slots, one for Attack, one for Defense and one for Timeline. Below are the various effects each gem has for each slot. Note that since the better quality gems just give a higher effect, all will be listed in parentheses (in the order of Rough, Tumbled, Faceted, Brilliant).
| Ruby | |
|---|---|
| Attack | |
| Defense | |
| Timeline | |
| Emerald | |
| Attack | |
| Defense | |
| Timeline | |
| Sapphire | |
| Attack | |
| Defense | |
| Timeline | |
| Amethyst | |
| Attack | |
| Defense | |
| Timeline | |
| Citrine | |
| Attack | |
| Defense | |
| Timeline | |
| Tourmaline | |
| Attack | |
| Defense | |
| Timeline | |
| Diamond | |
| Attack | |
| Defense | |
| Timeline | |
| Onyx | |
| Attack | |
| Defense | |
| Timeline | |
| Spinel | |
| Attack | |
| Defense | |
| Timeline | |
| Princess Stone | |
| Attack | |
| Defense | |
| Timeline | |
| Erin's Stone | |
| Attack | |
| Defense | |
| Timeline | |
