Thieves' Eye (5e Class Feature)
From D&D Wiki
At 14th level you can choose to take this instead of blindsense. When within 10 feet of something valued at 100 gp or higher you know it is within the vicinity of said 10 feet, when you have an item of 100 gp like this you will immediately know it is worth at least 100 gp. Also the Rogue can choose to take 15 minutes appraising an item to determine its value.