Tales of Tolgard
gem of seeing
This finely cut and polished stone looks identical to other ordinary jewels. Historically, these magic items were made from blue quartz but in modern times they are made from diamonds. When looked through, a gem of seeing allows the user to see as if they were under the effects of a true seeing spell. These gems can be used for up to thirty minutes a day for periods as short or as long as the user desires.