If a treasure hoard includes gemstones, you can use the following tables to randomly determine the kind of gemstones found, based on their value. You can roll once and assume all the gems are the same, or roll multiple times to create mixed collections of gemstones.

5000gp Gemstones:
d4 = 3

Jacinth (transparent fiery orange)

5000gp Gemstones
d45000gp Gemstones
1Black sapphire (translucent lustrous black with glowing highlights)
2Diamond (transparent blue-white, canary, pink, brown, or blue)
3Jacinth (transparent fiery orange)
4Ruby (transparent clear red to deep crimson)