Gemtopia is an area deep underground (about 30000ft underground).
It usually drops gem-shaped grists such as Quartz, Ametrine, Icycurrantium, etc.
Gemtopia, even though it's colorful, has a rare chance to drop Gembow, Jelqcoin, Peanusite, Gristgrist, Saygecks, or Kornerupine.
It contains monsters and other locations that drop gem-shaped grists.