The Diablo 4 NPC vendor known as the Jeweler unlocks the crafting and socketing of gems, the socketing of equipment itself, and the upgrading of jewelry.
How To Unlock The Jeweler
The Jeweler is a vendor that is not immediately available to interact with at the start of the game. When you reach level 20, a priority quest will be automatically granted, called Gem Crafting, which will unlock the Jeweler as well.
How To Craft Gems
Crafting gems involves the combination of lower tier gems into gems of a higher tier with an additional cost of gold.
- Chipped Amethyst
- Amethyst
- Flawless Amethyst
- Chipped Diamond
- Diamond
- Flawless Diamond
- Chipped Emerald
- Emerald
- Flawless Emerald
- Chipped Ruby
- Ruby
- Flawless Ruby
- Chipped Sapphire
- Sapphire
- Flawless Sapphire
- Chipped Skull
- Skull
- Flawless Skull
- Chipped Topaz
- Topaz
- Flawless Topaz
It is worth noting that after reaching level 60, Flawless quality gems become the norm in drops, negating the need to craft gems.
How To Socket Gems Into Equipment
Each type of gem confers its own particular set of enhancements to the item it is socketed into. Higher tier gems confer slightly higher bonuses as well.
Amethyst
- Weapon bonus +% Damage Over Time
- Armor bonus +% Damage Taken Over Time Reduction
- Jewelry bonus +% Shadow Resistance
Diamond
- Weapon bonus +% Ultimate Skill Damage
- Armor bonus +% Barrier Generation
- Jewelry bonus +% Resistance to All Elements
Emerald
- Weapon bonus +% Critical Strike Damage to Vulnerable Enemies
- Armor bonus + Thorns
- Jewelry bonus +% Poison Resistance
Ruby
- Weapon bonus +% Overpower Damage
- Armor bonus +% Maximum Life
- Jewelry bonus +% Fire Resistance
Sapphire
- Weapon bonus +% Critical Strike Damage to Crowd Controlled Enemies
- Armor bonus +% Damage Reduction while Fortified
- Jewelry bonus +% Cold Resistance
Skull
- Weapon bonus + Life On Kill
- Armor bonus +% Healing Received
- Jewelry bonus + Armor
Topaz
- Weapon bonus +% Basic Skill Damage
- Armor bonus +% Damage Reduction while Control Impaired
- Jewelry bonus +% Lightning Resistance
How To Unsocket Gems from Equipment
The Jeweler allows you to unsocket gems from equipment for a cost in gold. This is in contrast to unsocketing gems at the Blacksmith by salvaging equipment for free, thus losing the item while retaining the gem itself. Keep this in mind, if you are running short on gold, or have no further need for the item itself.
How To Add Gem Sockets To Equipment
The Jeweler can add another dimension to customization and personalization of gear by creating sockets in your equipment. This will add the attributes of whatever gem you eventually socket into it, over and above the Affixes and Aspects that may already be present. The process requires yet another rare crafting material in the form of Scattered Prisms. As of now, the only source for these appears to be random drops from World Bosses that themselves are part of random events in the open world.
How To Upgrade Rings And Amulets
The Jeweler is the vendor responsible for upgrading Rings and Amulets. Given the rarity of Ring and Amulet drops in general compared to other gear, it may be a good idea to do so with Rare quality Rings and Amulets in the early game, up until the point it begins to cost Veiled Crystals to progress further.
Rare Rings and Amulets
Upgrade 1
- 400 Gold
- 5x Iron Chunks
Upgrade 2
- 800 Gold
- 5x Iron Chunks
- 4x Silver Ore
Upgrade 3
- 2000 Gold
- 8x Iron Chunks
- 6x Silver Ore
- 4x Veiled Crystals
Legendary Rings and Amulets
Upgrade 1
- 500 Gold
- 5x Iron Chunks
Upgrade 2
- 1200 Gold
- 5x Iron Chunks
- 4x Silver Ore
Upgrade 3
- 3000 Gold
- 8x Iron Chunks
- 6x Silver Ore
- 6x Veiled Crystals
That is every service the Jeweler offers players in Diablo 4.