This magical set of vises, hammers, blades, and chisels was enchanted by the mountain dwarves who work the gemstone mines in the County of Sunndi. They help any character with a gem cutting proficiency to increase the value of his or her work. For individual stones, the cutter can make a proficiency check to gain a modifier to the Gem Base Value Table found in the DMG. The DM rolls 1d8 to determine the modifier:
| Roll | Modifier |
|---|---|
| 1-6 | -1 |
| 6-7 | -2 |
| 8 | -3 |
The tools are also useful for finishing stones in a mine: the cutter can add 20-50% to the final average value listed on Table 34: Gemstone Quality in the Dungeoneer's Survival Guide. A gem cutter with these tools can demand up to four times the normal fees for services.