Friendly & Inimical Gems
| Gem | Friendly | Inimical | Indifferent |
|---|---|---|---|
| Diamond | Blue Sapphire | Ruby, Pearl | Coral, Yellow Sapphire |
| Pearl | Ruby, Emerald | Diamond, Coral, Blue Sapphire, Yellow Sapphire | |
| Coral | Ruby, Pearl, Yellow Sapphire | Emerald | Diamond, Blue Sapphire |
| Emerald | Ruby, Diamond | Pearl | Coral, Yellow Sapphire |
| Blue Sapphire | Emerald, Diamond | Ruby, Pearl, Coral | Yellow Sapphire |
| Ruby | Pearl, Coral, Yellow Sapphire | Diamond, Blue Sapphire | Emerald |
| Hessonite | Emerald, Blue Sapphire, Diamond | Ruby, Pearl | Coral, Yellow Sapphire |
| Cat's Eye | Emerald, Blue Sapphire, Diamond | Pearl, Yellow Sapphire | Coral |
| Yellow Sapphire (Topaz) | Pearl, Coral | Emerald, Diamond | Blue Sapphire |
