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Finding and trading gems
JohnBraham edited this page Nov 9, 2026
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OreSpawn places Base Gems ores in the Overworld. Several gems share the same depths, so you can often find more than one type on a mining trip.
| Where to look | What you might find |
|---|---|
| Shallow dirt, clay, sand or gravel | Amber and moldavite |
| Upper and middle caves | Agate, jasper, carnelian and amethyst |
| Short veins farther down | Beryl, aquamarine, topaz and other gems |
| Deep caves | Ruby, sapphire and tanzanite |
| Near bedrock, Y 5–16 | Black diamond, one block at a time |
For the full set of gems and placement settings, see the ore generation guide.
Fortune can increase your gem yield. Silk Touch gives you the ore block for later and skips the mining XP.
Armourers, tool smiths and weapon smiths each offer one gem from a tier when they reach the corresponding career level. Try different smiths if you’re after a particular gem.
| Tier | XP per ore | Smith career level | Sell to a smith | Buy from a smith |
|---|---|---|---|---|
| Common, such as agate and amethyst | 1–2 | 1 | 12 gems for 1 emerald | 12 gems for 3 emeralds |
| Rare, such as ruby and sapphire | 2–4 | 3 | 4 gems for 1 emerald | 4 gems for 2 emeralds |
| Black diamond | 4–6 | 4 | 3 gems for 1 emerald | 3 gems for 2 emeralds |
Base Gems 1.10.2