Blue Diamond

Great Diamond Authority
White Diamond | Yellow Diamond | Blue Diamond | Pink Diamond

Homeworld Gems
Peridot | Lapis Lazuli | Jasper | Yellow Pearl | Blue Pearl | Pink Pearl | Eyeball Ruby | Navy Ruby | Holly Blue Agate | Aquamarine | Topaz | Emerald | Hessonite | Squaridot | Pyrope | Demantoid | Spinel | Mean Lapis

Fusion Gems
Sugilite | Malachite | Cluster Gems | Cluster | Zebra Jasper | Bluebird Azurite

Gem Monsters
Nephrite | Albite | Gem Cave Creature | Big Bird | Larimar | Invisible Gem Monster | Lighthouse Gem Monster | Slinker | Great North Gem Monsters | Lonely Pearl | Grossular Diopside | Monster Steven

Other
Robonoids | Bismuth | Holo-Connie | Marty | Frybo | Fable | Strike