Dragon bone tiara carved with three gem slots containing emeralds. Over time the emeralds gradually darken and eventually appear black.

You have advantage on saving throws against the Frightful Presence and breath weapons of dragons. 

Additionally, you can focus your senses as an action to magically discern the distance and direction to the closest black dragon within 30 miles of you. This special action can't be used again until the next dawn.

Notes: Advantage: Saving Throws, Advantage: Saving Throws, Charmed, Charmed, Cursed, Headwear