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Gems!Click to magnify


MOD (Virtual Tabletop)

I set off to make a better gemstone generator.  I broke each gem type into sizes and than calculated the costs and weights of each.  Than I put them into some linear scales for random generation. You should not need any other modules for these gemstones.

Each table is broken down into cost based on size. (Scale used by Lord Entrails)
Tiny is x1/2
Normal is x1
Medium is x5
Large is x20
Very Large is x100
Huge is x1000

Weights are adjusted as well based off the above scale.
I than took the tables for each price and linearly weighted each one. The higher the price, the less chance (a 5,000,000 gp gem will show up on a roll between 4,999,996 - 5,000,000)

I than took it a step farther and created story templates to generate 1, 5, 10, 20, and 50 gems to help you find that hoard you are looking for.

I, myself, like parcels ready to go, so I created the tables for that as well.

Finally, maybe you don't know how many gems should be generated and want a random number ranging from 1d5 - 1d20, so I added that.

I hope you can get some use out of this.  If all goes well, I will add in art objects as well for the high class urban civilization campaigns!


  • Updated organization item groups
  • Have gemstones by price!
  • Minimum and Maximum Costs for random gems has now been added with random generation!
  • Gems Broke into the 5 categories of treasure (Common, Uncommon, Rare, Very Rare, Legendary) by cost.
  • Random Gem Generator based on rarity
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Discussions (2)
Customer avatar
April R January 14, 2023 2:42 am UTC
My file keeps downloading corrupted
Customer avatar
Brett W February 11, 2017 9:37 pm UTC
Is there a defined link for the odds of gem sizes? I have rolled up tons of 50 bundles. it seems like 80+% of them are 5 gp gem.. the biggest I have seen is 1 250 gp gem. It seems to be too heavily weighted towards low end gems for me. I was thinking of modifying the odds but I wanted to see what the basis it was based on before I started modifying.
Customer avatar
Andy N February 13, 2017 6:55 pm UTC
On the "Random Gemstone Generator", the odds are written on the notes for each level. It is definitely weight against the more expensive. You can mess with the odds and fill in your own numbers on the table.
Customer avatar
Andy N February 13, 2017 6:56 pm UTC
1 - 3283360
3283361 - 4283360
4283361 - 4783360
4783361 - 4883360
4883361 - 4933360
4933361 - 4958360
4958361 - 4978360
4978361 - 4988360
4988361 - 4993360
4993361 - 4995860
4995861 - 4997860
4997861 - 4998860
4998861 - 4999360
4999361 - 4999610
4999611 - 4999810
4999811 - 4999910
4999911 - 4999960
4999961 - 4999985
4999986 - 4999995
4999996 - 5000000
Customer avatar
Brett W February 25, 2017 6:19 am UTC
thanks. I will play with the odds some. There are too many 5gp gems for my liking and my level 11 and level 9 group weren't impressed :D
Customer avatar
Brett W March 05, 2017 12:31 am UTC
thanks for the awesome updates. They are great. I will be using these a lot!
Customer avatar
Andy N March 05, 2017 8:38 pm UTC
If any other ideas/issues come to mind, post and I will update ASAP
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File Last Updated:
May 07, 2017
This title was added to our catalog on January 10, 2017.