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Diablo 4: Improve, use and remove gems – This is how the Jeweler works

Niko Hernes Niko Hernes Reading time 4 minutes
Edelstein Diablo 4 Schmiedin

One of the most important things to get the most out of your build in Diablo 4 are the gems. Gems can provide various values depending on where you use them. How to improve gems and the gem smith is covered in our guide.

Diablo 4
Diablo 4
Action RPGHack and Slash

How do gems work? Gems can be placed into the various sockets of your items. Depending on the type of equipment, gems improve different values. There are gems in 5 different quality levels:

  • Raw Gemstone
  • Damaged Gemstone
  • Gemstone
  • Flawless Gemstone
  • Royal Gemstone

Lower-level gemstones can be improved by the gem smith.

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Diablo 4: With this trick, you save inventory slots

Diablo 4: Unlocking the Gem Smith and Upgrading Gemstones

How do I unlock the Gem Smith? When you reach level 20 with your character, you receive a quest to visit the jeweler in Kyovashad. He will ask you to convert a raw ruby into a damaged ruby.

What else can you do at the Gem Smith? The Gem Smith not only improves gems but also has other important functions.

  • You can add sockets to equipment. The materials for this can be found with world bosses or loot goblins. This is useful when you have good equipment that lacks sockets.
  • You can remove gemstones from sockets if you want to swap them between equipment pieces.
  • You can upgrade your jewelry, i.e., rings and amulets, to enhance their values.
This is what the menu looks like when you want to craft and improve gemstones

How do I improve gemstones? To upgrade gems to the next level, you only need 3 copies of a gem and enough gold. For example, you can turn 3 damaged sapphires into a sapphire. Upgrading to the next level also improves the values provided by the gemstone.

The gold costs are as follows:

  • Damaged Gemstone: 4,500 Gold
  • Gemstone: 12,500 Gold
  • Flawless Gemstone: 18,000 Gold
  • Royal Gemstone: 50,000 Gold

Diablo 4: All Gemstones and Their Effects – Overview

All gemstones have more powerful effects depending on their type and upgrade level. We will now list all these effects and show you what bonuses you can obtain per upgrade level. To view the details of each gem, just open the gray box that bears the name of your sought-after gem:

Amethysts

Raw Amethyst

  • Weapon: 4% damage over time
  • Armor: 4% reduction of damage over time
  • Jewelry: 11.5% shadow resistance

Damaged Amethyst

  • Weapon: 5% damage over time
  • Armor: 5% reduction of damage over time
  • Jewelry: 14.3% shadow resistance

Amethyst

  • Weapon: 6% damage over time
  • Armor: 6% reduction of damage over time
  • Jewelry: 16.9% shadow resistance

Flawless Amethyst

  • Weapon: 7% damage over time
  • Armor: 7% reduction of damage over time
  • Jewelry: 19.6% shadow resistance

Royal Amethyst

  • Weapon: 8% damage over time
  • Armor: 8% reduction of damage over time
  • Jewelry: 22.1% shadow resistance
Sapphires

Raw Sapphire

  • Weapon: 6% critical hit damage against enemies under control effects
  • Armor: 1% damage reduction while you are fortified
  • Jewelry: 11.5% cold resistance

Damaged Sapphire

  • Weapon: 7.5% critical hit damage against enemies under control effects
  • Armor: 1.5% damage reduction while you are fortified
  • Jewelry: 14.3% cold resistance

Sapphire

  • Weapon: 9% critical hit damage against enemies under control effects
  • Armor: 2% damage reduction while you are fortified
  • Jewelry: 16.9% cold resistance

Flawless Sapphire

  • Weapon: 10.5% critical hit damage against enemies under control effects
  • Armor: 2.5% damage reduction while you are fortified
  • Jewelry: 19.6% cold resistance

Royal Sapphire

  • Weapon: 12% critical hit damage against enemies under control effects
  • Armor: 3% damage reduction while you are fortified
  • Jewelry: 22.1% cold resistance
Emeralds

Raw Emerald

  • Weapon: 6% critical hit damage against vulnerable enemies
  • Armor: 12 thorns
  • Jewelry: 11.5% poison resistance

Damaged Emerald

  • Weapon: 7.5% critical hit damage against vulnerable enemies
  • Armor: 38 thorns
  • Jewelry: 14.3% poison resistance

Emerald

  • Weapon: 9% critical hit damage against vulnerable enemies
  • Armor: 70 thorns
  • Jewelry: 16.9% poison resistance

Flawless Emerald

  • Weapon: 10.5% critical hit damage against vulnerable enemies
  • Armor: 150 thorns
  • Jewelry: 19.6% poison resistance

Royal Emerald

  • Weapon: 12% critical hit damage against vulnerable enemies
  • Armor: 250 thorns
  • Jewelry: 22.1% poison resistance
Diamonds

Raw Diamond

  • Weapon: 7% damage from ultimate abilities
  • Armor: 3% barrier generation
  • Jewelry: 4% resistance against all damage types

Damaged Diamond

  • Weapon: 9% damage from ultimate abilities
  • Armor: 3.5% barrier generation
  • Jewelry: 5% resistance against all damage types

Diamond

  • Weapon: 11% damage from ultimate abilities
  • Armor: 4% barrier generation
  • Jewelry: 6% resistance against all damage types

Flawless Diamond

  • Weapon: 13% damage from ultimate abilities
  • Armor: 4.5% barrier generation
  • Jewelry: 7% resistance against all damage types

Royal Diamond

  • Weapon: 15% damage from ultimate abilities
  • Armor: 5% barrier generation
  • Jewelry: 8% resistance against all damage types
Rubies

Raw Ruby

  • Weapon: 12% overpower damage
  • Armor: 2% maximum life
  • Jewelry: 11.5% fire resistance

Damaged Ruby

  • Weapon: 15% overpower damage
  • Armor: 2.5% maximum life
  • Jewelry: 15.3% fire resistance

Ruby

  • Weapon: 18% overpower damage
  • Armor: 3% maximum life
  • Jewelry: 16.9% fire resistance

Flawless Ruby

  • Weapon: 21% overpower damage
  • Armor: 3.5% maximum life
  • Jewelry: 19.6% fire resistance

Royal Ruby

  • Weapon: 24% overpower damage
  • Armor: 4% maximum life
  • Jewelry: 22.1% fire resistance
Skulls

Raw Skull

  • Weapon: 2 life on kill
  • Armor: 3% healing received
  • Jewelry: 75 armor

Damaged Skull

  • Weapon: 5 life on kill
  • Armor: 3.5% healing received
  • Jewelry: 125 armor

Skull

  • Weapon: 8 life on kill
  • Armor: 4% healing received
  • Jewelry: 170 armor

Flawless Skull

  • Weapon: 12 life on kill
  • Armor: 4.5% healing received
  • Jewelry: 220 armor

Royal Skull

  • Weapon: 24 life on kill
  • Armor: 5% healing received
  • Jewelry: 250 armor
Topaz

Raw Topaz

  • Weapon: 10% damage from basic skills
  • Armor: 6% damage reduction when suffering from control effects
  • Jewelry: 11.5% lightning resistance

Damaged Topaz

  • Weapon: 12.5% damage from basic skills
  • Armor: 7% damage reduction when suffering from control effects
  • Jewelry: 14.3% lightning resistance

Topaz

  • Weapon: 15% damage from basic skills
  • Armor: 8% damage reduction when suffering from control effects
  • Jewelry: 16.9% lightning resistance

Flawless Topaz

  • Weapon: 17.5% damage from basic skills
  • Armor: 9% damage reduction when suffering from control effects
  • Jewelry: 19.6% lightning resistance

Royal Topaz

  • Weapon: 20% damage from basic skills
  • Armor: 10% damage reduction when suffering from control effects
  • Jewelry: 22.1% lightning resistance
More on the topic
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How can I forge stronger gemstones? To be able to forge higher quality gemstones, you just need to level up your hero. Depending on your level, you will unlock higher quality upgrade levels for your gemstones:

  • Damaged Gemstones: Level 20
  • Gemstones: Level 40
  • Flawless Gemstones: Level 60
  • Royal Gemstones: Level 70

This only pertains to crafting. You can also find flawless diamonds for example at level 55.

Need more guides for Diablo 4? Then take a look at the overview of all our guides.

This is an AI-powered translation. Some inaccuracies might exist.
Source(s):
  1. maxroll.gg