_Okay, to start this off, I am accepting the possibility that this isn't a good question. Just throwing that out there._

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Alright, so I will explain now the situation. I am a player in a D&D 5e game with 4 other players and a Novice DM. We were 4th level characters at the time, hadn't been getting a lot of monetary reward for our dungeon crawling, and we've been beating up the undead for a side quest for a nice lich. We decided it's been long enough, so one of our Sorcerers cast _Invisibility_ on our _Way of the Shadow_ Monk, who then sneaked into a guard tower of a small town. 

Looking around the big tower, the Monk found the armory, which doubled as a locker room of sorts, or maybe an evidence chamber. It had a whopping 20 locked chests, which contained in total 500 pounds of gems and a conveniently located _Bag of Holding_. Needless to say we looted them to hell and now we're stuck with all of these gems. 

Now, according to our calculations using tools for older editions, the minimum value of this many gems was a bit over 4 _million_ gp.

**Is this right? Is there a tool or table or are there rules/guidelines for this?**

The math we did used the information on [this website](https://olddungeonmaster.wordpress.com/2012/06/10/gems/).

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Thanks to Miniman, I realized I forgot to mention this **important detail**: We do not know what quality or size or gp value the gems are themselves. Our calculations were absolute minimum, smallest size and lowest base value. They could all be diamonds or blood opals or polished jets or opals or whatever.