Gems

can be purchased in the treasure section of the market.

are used to speed up the time it takes to: AND can be spent to:
 * Construct Buildings
 * Clear Obstacles
 * Hatch eggs
 * Breed dragons
 * Grow treats
 * Complete Quests
 * Anything else that involves time  except  the Colosseum, Dragonsai Gifting Tree, the four-day wait for Kairos to be activated, cash or gem collection from habitats, and the 24 hour clock to give free gems


 * Upgrade the Nursery to hold up to four eggs
 * Upgrade the Hibernation Cave to hold up to 200 dragons
 * Purchase the Epic Breeding Island
 * Purchase the Dragonsai Gifting Tree
 * Upgrade the Breeding Cave to the Enchanted Breeding Cave
 * Upgrade the Epic Breeding Island to the Epic Breeding Sanctuary
 * Upgrade the Storage Tower to add more slots (up to 25)
 * Buy Dragon Eggs (only applicable to some dragons)
 * Buy Time Fragments to assemble the Artifacts - Chronolith, Time Claw, and Statue of Kairos - required to summon Kairos
 * Buy Giant Habitats

Gem Prices
The purchase price for are constant throughout game progression. can be purchased for:

Gem Value
One Gem is equal to whatever time is left  up to  an hour. This means if there is 02:03:00 (hh:mm:ss) left for the egg to hatch or breed, it will cost 3 to finish it (2 for the hours + 1 for the 3 minutes). However, if you wait 4 minutes until 01:59:00 it will only cost 2. There is a glitch that allows players to spend 1 |gem when the timer shows 00:00:00.