Jewel with timeless power.
It is said that special abilities can be given to special armors that respond to the power of time.

[Enchantable Items]
Soaring Power Armor[1]
Strong Magic Armor[1]
Hardened Vitality Armor[1]
Excellent Dexterity Armor[1]
Brilliant Rapid Armor[1]
Unexpected Lucky Armor[1]

Gemstone of Time can be obtained from:
NPC: Cat Salesman Nyarom at itemmall,41,50. You can buy extras from Nya and Jenny.