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Farming/Upgrading Legendary Gems and Crafting Normal Gems

Last updated on Nov 19, 2019 at 15:23 by Blainie 27 comments

Gems can be found in either legendary or non-legendary forms, with the latter simply granting flat stat buffs. The former provide special effects that are often integral to a build's playstyle and can completely change the potential of a build.

This page covers the gems that are currently available, as well as their effects and information on each.

Gems can be unsocketed at will and higher level gems can be used on any character, so spending gold to upgrade non-legendary gems or farming for legendary gems (and upgrading them) is never a waste. Depending on your amount of play, you will also likely need to keep farming and leveling them to fulfil the Augment recipe in Kanai's Cube.

1.

Non-legendary Gems

Non-legendary gems or normal gems come in 5 possible types: Amethyst, Diamond, Emerald, Ruby, and Topaz. Each of this type of gem gives you different stat bonuses for different item slots.

Gem Type Stats on Helms Stats on Weapons Stats on Other Item Slots
Amethysts % Life Life per Hit Vitality
Diamonds Cooldown Reduction +Damage to Elites All Resistance
Emeralds Extra Gold Critical Hit Damage Dexterity
Rubies Bonus Experience Damage Strength
Topazes Resource Cost Reduction Thorns Damage Intelligence

At Level 70, the most basic gems you can find are Marquise gems, for example Marquise Emerald Marquise Emerald. You can upgrade these gems all the way to Flawless Royal Emerald Flawless Royal Emerald. All the gem types follow the same upgrade patterns, which we describe below for Emerald gems.

This means that to craft a single Flawless Royal Emerald Flawless Royal Emerald, you will need a total of 81x Marquise Emerald Marquise Emerald, 4x Death's Breath Death's Breath, and 9,800,000 Gold. Imperial gems do sometimes drop at Level 70, so having a few of those will lower the cost, but the overall cost is extremely cheap compared to the amount of gold you will find at Level 70.

You also need to find the Jeweler's patterns for these gems, which can be found in the Bounty Cache you obtain from completing 5 bounties in a single act.

2.

Legendary Gems

Legendary gems are obtained from Greater Rifts. You are guaranteed to get one every time you kill a Greater Rift Guardian.

2.1.

Upgrading a Legendary Gem

Unlike normal gems, legendary gems can only be increased in power by upgrading them through Greater Rifts.

Each time you complete a greater rift, you will be able to upgrade the gem by a single rank, with 3 guaranteed chances at an upgrade if you complete the rift in time. Additionally, you will get an extra chance if you do not die during the rift or if you empower it when starting the rift using gold. By doing both, you can have a maximum of 5 upgrade chances per Greater Rift.

Each upgrade is given a percentage chance to succeed, dependant on the level of the gem and the Greater Rift level you completed. Currently, the chances are as follows:

  • 100%: Greater Rift Level higher than or equal to Gem's Rank + 10;
  • 90%: Greater Rift Level ≥ Gem's Rank + 9;
  • 80%: Greater Rift Level = Gem's Rank + 8;
  • 70%: Greater Rift Level = Gem's Rank + 7;
  • 60%: Gem's Rank + 6 ≥ Greater Rift Level ≥ 0;
  • 30%: Greater Rift Level = Gem's Rank - 1;
  • 15%: Greater Rift Level = Gem's Rank - 2;
  • 8%: Greater Rift Level = Gem's Rank - 3;
  • 4%: Greater Rift Level = Gem's Rank - 4;
  • 2%: Greater Rift Level = Gem's Rank - 5;
  • 1%: Greater Rift Level = Gem's Rank - 6;
  • 0%: Greater Rift Level ≤ Gem's Rank - 7.

All legendary gems can be upgraded to give them better stats (or rather, more powerful effects). When you first loot a legendary gem, it has a rank of 0 and its special Rank 25 effect is locked.

2.2.

List of Legendary Gems

There are currently 23 legendary gems in the game, with 22 readily available at any time and 1 seasonal gem.

  • Bane of the Powerful Bane of the Powerful — grants 20% increased damage for 30 seconds after killing an elite pack. Each upgrade increases the duration of the effect by 1 second.
    • Rank 25 bonus — gain 15% increased damage versus elites and take 15% reduced damage from elites.
  • Bane of the Stricken Bane of the Stricken — each attack you make against an enemy increases the damage it takes from your attacks 0.8%. Each upgrade increases the damage increase by 0.01%.
    • Rank 25 bonus — gain 25% increased damage against Rift Guardians and bosses.
  • Bane of the Trapped Bane of the Trapped — increases damage done to enemies under control-impairing effects by 15%. Each upgrade increases the damage increase by 0.3%.
    • Rank 25 bonus — gain an aura that slows the movement speed of enemies within 15 yards by 30%.
  • Boon of the Hoarder Boon of the Hoarder — 25% chance on killing an enemy to create an explosion of gold. Each upgrade increases the chance by 1.5%.
    • Rank 25 bonus — gain 30% movement speed for 3 seconds after picking up gold.
    • Note: this gem cannot be upgraded past Rank 50.
  • Boyarsky's Chip Boyarsky's Chip — Adds 16000 Thorns. Each upgrade increases the amount by 800.
    • Rank 25 bonus — taunt the first enemy hit by Primary skills for 2 seconds.
  • Enforcer Enforcer — increases the damage of your pets by 15%. Each upgrade increases the damage by 0.3%.
    • Rank 25 bonus — your pets take 90% less damage.
  • Esoteric Alteration Esoteric Alteration — gain 10% non-Physical damage reduction. Each upgrade increases the damage reduction by 0.5%.
    • Rank 25 bonus — while below half Life, your resistances to Cold, Fire, Lightning, Poison, and Arcane are increased by 75%.
  • Gem of Ease Gem of Ease — monster kills grant 500 additional experience. Each upgrade gives an additional 50 experience.
    • Rank 25 bonus — the level requirement of the weapon this is socketed into is set to 1.
  • Gem of Efficacious Toxin Gem of Efficacious Toxin — poison all enemies hit for 2000% damage as Poison over 10 seconds. Each upgrade increases the damage dealt by 50%.
    • Rank 25 bonus — poisoned enemies also take 10% increased damage from all sources and deal 10% less damage with all attacks.
  • Gogok of Swiftness Gogok of Swiftness — on each hit, gain 1% increased Attack Speed and 0.5% Dodge chance for 4 seconds, stacking up to 15 times. Each upgrade increases the dodge chance per hit by 0.01%.
    • Rank 25 bonus — also gain 1% cooldown reduction per stack of Swiftness.
  • Iceblink Iceblink — your Cold skills now apply Chill effects and your Chill effects now slow enemy movement speed by an additional 5%. Each upgrade increases the additional movement speed reduction by 0.4%.
    • Rank 25 bonus — you gain 10% increased chance to critically strike Chilled or Frozen enemies.
  • Invigorating Gemstone Invigorating Gemstone — each hit done increases healing received by 1% for 5 seconds, stacking up to 10 times. Each upgrade increases the additional healing by 0.02%.
    • Rank 25 bonus — become immune to control impairing effects.
  • Legacy of Dreams Legacy of Dreams — while you have no set bonuses equipped, every Legendary item you have equipped increases your damage by 3.75% and reduces your damage taken by 2%. Each upgrade increases the additional damage by 3.75%.
    • Rank 25 bonus — this bonus is doubled for Ancient items.
  • Mirinae, Teardrop of the Starweaver Mirinae, Teardrop of the Starweaver — 15% chance on hit to smite a nearby enemy for 3000% damage as Holy, healing the character for 3% of maximum Life. Each upgrade increases the damage by 60%.
    • Rank 25 bonus — Smite a nearby enemy every 3 seconds.
  • Molten Wildebeest's Gizzard Molten Wildebeest's Gizzard — regenerates 10,000 Life per second. Each upgrade increases the amount by 1,000.
    • Rank 25 bonus — after not taking damage for 4 seconds, gain an absorb shield for 200% of your total Life per Second.
  • Moratorium Moratorium — 35% of all damage taken is instead staggered and dealt to the character over 3 seconds. Each upgrade increases the stagger duration by 0.1s.
    • Rank 25 bonus — 20% chance on kill to clear all staggered damage.
  • Mutilation Guard Mutilation Guard — gain 10% melee damage reduction. Each upgrade increases the reduction by 0.5%.
    • Rank 25 bonus — while below 50% Life, you may move through enemies unhindered.
  • Pain Enhancer Pain Enhancer — Critical hits cause enemies to bleed for 2,500% damage as Physical over 3 seconds. Each upgrade increases the damage by 50%.
    • Rank 25 bonus — gain Blood Frenzy, granting 3% increased Attack Speed for each bleeding enemy within 20 yards.
  • Simplicity's Strength Simplicity's Strength — increases the damage of Primary skills by 25%. Each upgrade increases the damage bonus by 0.5%.
    • Rank 25 bonus — Primary skills heal for 4% of maximum Life on hit.
  • Taeguk Taeguk — gain 2% increased damage for 1.5 seconds for each tick of a channelled skill, stacking up to 10 times. Each upgrade increases the damage bonus by 0.04%.
    • Rank 25 bonus — gain 2% increased Armor for every stack.
  • Wreath of Lightning Wreath of Lightning — 15% chance on hitting an enemy to gain a Wreath of Lightning, dealing 1250% damage as Lightning every second to nearby enemies for 3 seconds. Each upgrade increases the damage amount by 25%.
    • Rank 25 bonus — while under the effect of the Wreath, gain 25% increased movement speed.
  • Zei's Stone of Vengeance Zei's Stone of Vengeance — damage dealt to each enemy hit is increased by 4% for every 10 yards between you and the enemy hit, with a maximum increase of 20% at 50 yards. Each upgrade increases the damage bonus by 0.08% per 10 yards and increases the maximum bonus at maximum range by 0.4%.
    • Rank 25 bonus — 20% chance on hit to Stun the enemy hit for 1 second.

There is 1 legendary gem that is not listed above, which is the Anniversary Event gem, Red Soul Shard Red Soul Shard. You can learn more about this in our Darkening of Tristram guide for the 20th Anniversary Event.

3.

Gems in Kanai's Cube

Gems are a vital component of multiple recipes in Kanai's Cube, including gem type swapping and augments.

You can find out more about both in our overview of Kanai's Cube below.

4.

Changelog

  • 19 Nov. 2019: Added guide.
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