Gem of Seeing
Wondrous Item,
Rare
(requires attunement; cost 5000 gp)
Crafting Components
Lens that a creature with truesight has looked through
This gem has 3 charges and regains 1d3 charges each dawn. You can use an action to speak the gem’s command word and expend 1 charge. For the next 10 minutes, you have truesight to a range of 120 feet when you peer through the gem.
Source