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Gems are custom items that work like accessory cards. Each type of gem gives its own stats or ability. Gems in eRO have different grade levels, ranging from G1 to G10.

Click here to jump to the table of gems.

Players can cut gems at Gem Cutter after completing one of Petra's Forgotten Temple quests.

Chapter 7 introduces Abel who allows players to assemble G8-G10 gem-cutting books after completing the Forgotten Temple quest 30 times.

Cutting gems require gemstones, respective gem-cutting books, and refine solutions. Different solutions have different 'qualities', ergo different rates of succeeding the gem-cutting process. The higher the grade of the gem that you're trying to cut, the lower the chances are of refine solutions succeeding. The following list is sorted by chance, high to low:

  1. Enthiric
  2. Low Enthiric
  3. Hime
  4. Elixir
  5. High Ether
  6. Ether
  7. Low Ether
  8. Essence
  9. Low Essence

Some customized monsters drop gems directly.

Sphinx

  • Ruby - G5 (10.00%)
  • Sapphire - G5 (10.00%)
  • Emerald - G5 (10.00%)
  • Topaz - G5 (10.00%)
  • Garnet - G5 (10.00%)
  • Zircon - G5 (10.00%)
  • Diamond - G5 (10.00%)
  • Opal - G5 (10.00%)

Evil Spirit

  • Ruby - G3 (10.00%)
  • Sapphire - G3 (10.00%)
  • Emerald - G3 (10.00%)
  • Topaz - G3 (10.00%)
  • Garnet - G3 (10.00%)
  • Zircon - G3 (10.00%)
  • Diamond - G3 (10.00%)
  • Opal - G3 (10.00%)

Ruby

  • G1: STR +5
  • G2: STR +8
  • G3: STR+ 11
  • G4: STR +15
  • G5: STR+ 20
  • G6: STR +25
  • G7: STR +35
  • G8: STR +35 | -1% Hard DEF
  • G9: STR +35 | LUK +20 | -1% Hard DEF
  • G10: STR +50 | LUK +20 | -2% Hard DEF

Sapphire

  • G1: AGI +5
  • G2: AGI +8
  • G3: AGI +11
  • G4: AGI+ 15
  • G5: AGI +20
  • G6: AGI +25
  • G7: AGI +35
  • G8: AGI +35 | FLEE +1%
  • G9: AGI +35 | LUK +20 | FLEE+1%

Topaz

  • G1: INT +5
  • G2: INT +8
  • G3: INT +11
  • G4: INT +15
  • G5: INT +20
  • G6: INT+ 25
  • G7: INT+ 35
  • G8: INT +35 | -1% After-cast Delay
  • G9: INT +35 | LUK +20 | -1% After-cast Delay
  • G10: INT +50 | LUK +20 | -1% After-cast Delay

Garnet

  • G1: DEX +5
  • G2: DEX +8
  • G3: DEX +11
  • G4: DEX +15
  • G5: DEX +20
  • G6: DEX +25
  • G7: DEX +35
  • G8: DEX +35 | HIT +1%
  • G9: DEX +35 | LUK +20 | HIT +1%
  • G10: DEX +50 | LUK +20 | HIT +2%

Zircon

  • G1: LUK +5
  • G2: LUK +8
  • G3: LUK +11
  • G4: LUK +15
  • G5: LUK +20
  • G6: LUK+ 25
  • G7: LUK+ 35
  • G8:
    • LUK + 35
    • +10% Confusion Resist
    • +10% Curse Resist
    • +10% Silence Resist
    • +10% Sleep Resist
    • +10% Bleeding Resist
    • +10% Freeze Resist
    • +10% Poison Ailment Resist
    • +10% Stun Resist
  • G9:
    • LUK + 50
    • +10% Confusion Resist
    • +10% Curse Resist
    • +10% Silence Resist
    • +10% Sleep Resist
    • +10% Bleeding Resist
    • +10% Freeze Resist
    • +10% Poison Ailment Resist
    • +10% Stun Resist
  • G10:
    • LUK + 70
    • +10% Confusion Resist
    • +10% Curse Resist
    • +10% Silence Resist
    • +10% Sleep Resist
    • +10% Bleeding Resist
    • +10% Freeze Resist
    • +10% Poison Ailment Resist
    • +10% Stun Resist

Diamond

  • G1: ATK +35
  • G2: ATK +50
  • G3: ATK +70
  • G4: ATK +90
  • G5: ATK +115
  • G6: ATK +140
  • G7: ATK +175
  • G8:
    • ATK +185
    • -10% Max HP
    • -5% Max SP
  • G9:
    • ATK +200
    • LUK +20
    • -30% Max HP
    • -5% Max SP
  • G10:
    • ATK +225
    • LUK +20
    • -50% Max HP
    • -5% Max SP

Opal

  • G1:
    • CRIT +5
    • Seeking Attack +1%
    • Critical Shield +1%
  • G2:
    • CRIT +8
    • Seeking Attack +1%
    • Critical Shield +1%
  • G3:
    • CRIT +11
    • Seeking Attack +1%
    • Critical Shield +1%
  • G4:
    • CRIT +15
    • Seeking Attack +1%
    • Critical Shield +1%
  • G5:
    • CRIT +20
    • Seeking Attack +2%
    • Critical Shield +2%
  • G6:
    • CRIT +25
    • Seeking Attack +2%
    • Critical Shield +2%
  • G7:
    • CRIT +35
    • Seeking Attack +2%
    • Critical Shield +2%
  • G8:
    • CRIT +35
    • Seeking Attack +3%
    • Critical Shield +3%
  • G9:
    • CRIT +35
    • LUK +20
    • Seeking Attack +4%
    • Critical Shield +4%
  • G10:
    • CRIT +35
    • LUK +20
    • Seeking Attack +5%
    • Critical Shield +5%

Table

Gem
Ruby Sapphire Emerald Topaz Garnet Zircon Diamond Opal
G
r
a
d
e
G1 STR +5 AGI +5 VIT +5 INT +5 DEX +5 LUK +5 ATK +35 CRIT +5

Seeking +1%

Crit. Shield +1%

G2 STR +8 AGI +8 VIT +8 INT +8 DEX +8 LUK +8 ATK +50 CRIT +8

Seeking +1%

Crit. Shield +1%

G3 STR+ 11 AGI +11 VIT +11 INT +11 DEX +11 LUK +11 ATK +70 CRIT +11

Seeking +1%
Crit. Shield +1%

G4 STR+ 15 AGI +15 VIT +15 INT +15 DEX +15 LUK +15 ATK +90 CRIT +15

Seeking +1%
Crit. Shield +1%

G5 STR+ 20 AGI +20 VIT +20 INT +20 DEX +20 LUK +20 ATK +115 CRIT +20

Seeking +2%
Crit. Shield +2%

G6 STR+ 25 AGI +25 VIT +25 INT +25 DEX +25 LUK +25 ATK +140 CRIT +25

Seeking +2%
Crit. Shield +2%

G7 STR+ 35 AGI +35 VIT +35 INT +35 DEX +35 LUK +35 ATK +175 CRIT +35

Seeking +2%
Crit. Shield +2%

G8 STR+ 35

-1% H. DEF

AGI +35

FLEE +1%

VIT +35

-1% S. DEF

INT +35

-1% AC Delay

DEX +35

HIT +1%

LUK + 35

+10% Confusion Resist

+10% Curse Resist

+10% Silence Resist

+10% Sleep Resist

+10% Bleeding Resist

+10% Freeze Resist

+10% Poison Ailment Resist

+10% Stun Resist

ATK +185

-10% Max HP
-5% Max SP

CRIT +35

Seeking +3%
Crit. Shield +3%

G9 STR+ 35

LUK +20
-1% H. DEF

AGI +35

LUK +20
FLEE +1%

VIT +35

LUK +20
-1% S. DEF

INT +35

LUK +20
-1% AC Delay

DEX +35

LUK +20
HIT +1%

LUK + 50

+10% Confusion Resist

+10% Curse Resist

+10% Silence Resist

+10% Sleep Resist

+10% Bleeding Resist

+10% Freeze Resist

+10% Poison Ailment Resist

+10% Stun Resist

ATK +200

LUK +20
-30% Max HP
-5% Max SP

CRIT +35

LUK +20
Seeking +4%
Crit. Shield +4%

G10 STR+ 50

LUK +20
-2% H. DEF

AGI +50

LUK +20
FLEE +2%

VIT +50

LUK +20
-2% S. DEF

INT +50

LUK +20
-1% AC Delay

DEX +50

LUK +20
HIT +2%

LUK + 70

+10% Confusion Resist

+10% Curse Resist

+10% Silence Resist

+10% Sleep Resist

+10% Bleeding Resist

+10% Freeze Resist

+10% Poison Ailment Resist

+10% Stun Resist

ATK +225

LUK +20
-50% Max HP
-5% Max SP

CRIT +35

LUK +20
Seeking +5%
Crit. Shield +5%