Stones/Gems with O
- Obsidian
- Ore
- Oro
- Olive
- Ores
- Opaque
- orange calcite
- Olivine
- Opale
- Oracle
- Old
- Opalo
- ONYX
- octopus
- Oynx
- One
- Oxford
- Osmium
- oval diamond
- obisdian
- Orchid
- Olivia
- Obsidion
- Orange sapphire
- Obsydian
- obsidiana
- One stone
- oak
- Oval stone
- Orange Stone
- ornament
- Obsedian
- Orichalcum
- Ople
The words in the list Stones/Gems with O come from players of the word game Categories game.