From Dark and Darker Wiki
I can socket a gem to overwrite its power.
Service
Allows the player to replace certain rolls on gear they acquire in exchange for a gem and gold fee corresponding to the rarity
Offered Rolls
| Enchantment | Gem | Head | Chest | Hands | Legs | Feet | Back | Ring | Necklace |
|---|---|---|---|---|---|---|---|---|---|
| Action speed | Sapphire | 1-1.2% | 1.5-1.8% | 1-1.2% | 1.5-1.8% | N/A | 1.5-1.8% | 1-1.2% | 1.5-1.8% |
| Agility | Diamond | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Armor Penetration | Ruby | 2-2.5% | N/A | 2-2.5% | N/A | N/A | 2.5%-3% | 1-1.8% | 2.5-3% |
| Add Armor Rating | Emerald | 3-4 | 5-8 | 3-4 | 5-8 | 3-4 | 3-4 | 3-4 | 5-8 |
| Rarity | Cost (Gold coins) |
|---|---|
| Poor | 10 |
| Common | 20 |
| Uncommon | 30 |
| Rare | 50 |
| Epic | 100 |
| Legendary | 150 |
| Unique | 200 |