Ruby

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Rubies are one of the five types of gems found in Diablo III. The others are Amethyst, Emerald, Topaz, and Diamonds, the last added in Patch 2.0.1 and Reaper of Souls. See the main gems article for full details about gem scarcity, upgrade recipes, strategy, and more.

Rubies provide a variety of bonuses, adding % Experience gain in helms, +damage in weapons, and +Strength in Armor. The exp gain bonus from a helm is a popular socket. Strength is the mainstat for Barbarians and Crusaders and those classes often stick Rubies into their armor for the boost to damage and the secondary benefit of raising their Armor.

As of D3v2 and Reaper of Souls, a Ruby is the best option for a weapon socket for any low level or poorly-geared character. In the end game more players choose Emeralds to raise Critical hit Damage, but this is only valuable to characters who have a good Critical hit Chance value. Prior to Patch 1.0.7 Rubies were much less useful in weapons, but that patch buffed their damage considerably.


Contents

[edit] Development Changes

During development, Rubies added a bonus to the Attack stat, when socketed in "other" objects. This was changed to a +Strength bonus in the final game.


[edit] Ruby Stats

Quality Helm Other Weapon
ItemGemRubyRank1.png Chipped Ruby Increases experience reward per kill by 5% +6 Strength +3 Minimum Damage, +3 Maximum Damage
ItemGemRubyRank2.png Flawed Ruby Increases experience reward per kill by 7% +10 Strength +6 Minimum Damage, +6 Maximum Damage
ItemGemRubyRank3.png Regular Ruby Increases experience reward per kill by 9% +14 Strength +9 Minimum Damage, +9 Maximum Damage
ItemGemRubyRank4.png Flawless Ruby Increases experience reward per kill by 11% +18 Strength +12 Minimum Damage, +12 Maximum Damage
ItemGemRubyRank5.png Perfect Ruby Increases experience reward per kill by 13% +22 Strength +15 Minimum Damage, +15 Maximum Damage
ItemGemRubyRank6.png Radiant Ruby Increases experience reward per kill by 15% +26 Strength +18 Minimum Damage, +18 Maximum Damage
ItemGemRubyRank7.png Square Ruby Increases experience reward per kill by 17% +30 Strength +21 Minimum Damage, +21 Maximum Damage
ItemGemRubyRank8.png Flawless Square Ruby Increases experience reward per kill by 19% +34 Strength +25 Minimum Damage, +25 Maximum Damage
ItemGemRubyRank9.png Perfect Square Ruby Increases experience reward per kill by 21% +38 Strength +30 Minimum Damage, +30 Maximum Damage
ItemGemRubyRank10.png Radiant Square Ruby Increases experience reward per kill by 23% +42 Strength +40 Minimum Damage, +40 Maximum Damage
ItemGemRubyRank11.png Star Ruby Increases experience reward per kill by 25% +46 Strength +60 Minimum Damage, +60 Maximum Damage
ItemGemRubyRank12.png Flawless Star Ruby Increases experience reward per kill by 27% +50 Strength +80 Minimum Damage, +80 Maximum Damage
ItemGemRubyRank13.png Perfect Star Ruby Increases experience reward per kill by 29% +54 Strength +100 Minimum Damage, +100 Maximum Damage
ItemGemRubyRank14.png Radiant Star Ruby Increases experience reward per kill by 31% +58 Strength +120 Minimum Damage, +120 Maximum Damage
Ruby-R15-marquise.png Marquise Ruby Increases experience reward per kill by 33% +62 Strength +150 Damage
Ruby-R16-imperial.png Imperial Ruby (RoS only) Increases experience reward per kill by 35% +100 Strength +190 Damage
Ruby-R17-flawless-imperial.png Flawless Imperial Ruby (RoS only) Increases experience reward per kill by 37% +160 Strength +220 Damage
Ruby-R18-royal.png Royal Ruby (RoS only) Increases experience reward per kill by 39% +220 Strength +250 Damage
Ruby-R19-flawless-royal.png Flawless Royal Ruby (RoS only) Increases experience reward per kill by 41% +280 Strength +270 Damage


[edit] Diablo II Ruby

Though Rubies were found in Diablo II, their stats are not the same as Rubies in Diablo III.


Quality Weapon Helm or Armor Shield Clvl Req
Chipped +3-4 Fire Damage +10 to Maximum Life +12% fire resistance 1
Flawed +5-8 to Fire Damage +17 to Maximum Life +16% to Fire Resistance 5
Normal +8-12 to Fire Damage +24 to Maximum Life +22% fire resistance 12
Flawless +10-16 to Fire Damage +31 to Maximum Life +28% fire resistance 15
Perfect +15-20 Fire Damage +38 to Maximum Life +40% fire resistance 18


[edit] Patch 1.0.7 Buffs

The value of Rubies in weapons was considerably increased in Patch 1.0.7. Here's a quote from the patch notes:[1]

All ruby gems have had their weapon bonuses increased (these changes will apply to both existing rubies, as well as new rubies):
  • Chipped Ruby: +3 minimum damage/+3 maximum damage (up from +2/+2)
  • Flawed Ruby: +6 minimum damage/+6 maximum damage (up from +4/+4)
  • Ruby: +9 minimum damage/+9 maximum damage (up from +8/+8)
  • Flawless Ruby: +12 minimum damage/+12 maximum damage (up from +10/+10)
  • Perfect Ruby: +15 minimum damage/+15 maximum damage (up from +11/+11)
  • Radiant Ruby: +18 minimum damage/+18 maximum damage (up from +12/+12)
  • Square Ruby: +21 minimum damage/+21 maximum damage (up from +13/+13)
  • Flawless Square Ruby: +25 minimum damage/+25 maximum damage (up from +14/+14)
  • Perfect Square Ruby: +30 minimum damage/+30 maximum damage (up from +15/+15)
  • Radiant Square Ruby: +40 minimum damage/+40 maximum damage (up from +16/+16)
  • Star Ruby: +60 minimum damage/+60 maximum damage (up from +17/+17)
  • Flawless Star Ruby: +80 minimum damage/+80 maximum damage (up from +18/+18)
  • Perfect Star Ruby: +100 minimum damage/+100 maximum damage (up from +19/+19)
  • Radiant Star Ruby: +130 minimum damage/+130 maximum damage (up from +20/+20)
  • Marquise Ruby: +160 Minimum and +160 Maximum Damage

These rubies have also had their bonus damage calculations changed, and will now add damage flatly to both the minimum and maximum values on weapons

For example, if you have a weapon that does 150-200 damage and you socket a Perfect Square Ruby (which adds +30 minimum damage/+30 maximum damage), your weapon will do 180-230 damage

The boosts to high end Ruby damage were enormous, and while Emeralds remain the weapon socket of choice for most characters, Rubies are useful for some classes and builds, especially those that deal damage with skill that do not or seldom proc their damage from critical hits.