What is Gem or Jewels
Jewels increase the probability of upgrade success. Most jewels can be obtained by processing mine, but some may be purchased at at the cash shop.
| Image | Item Name | Effect | Obtained from: |
 | Ruby | Barely Increases upgrade probability (T1) | Processing ore |
 | Light Ruby | Slightly increases upgrade probability (T2) | Processing ore |
 | Fire Ruby | Moderately increases upgrade probability (T3) | Processing ore |
 | Salamander Ruby | Greatly increases upgrade probability (T4) | Processing ore |
 | Lucky Ruby | Enormously increases upgrade probability (T5) |  Lucky Set of Gem Exchanger (Cash Shop) |
 | Shiny Ruby of Luck | Very Enormously increases upgrade probability (T6) |  Shiny Luck Jewel Coupon (Cash Shop) |
 | Brilliant Lucky Ruby | Extremely Enormously increases upgrade probability (T7) |  Briliant Gem Set Exchanger (Cash Shop) |
 | Crystal | Barely Increases upgrade probability (T1) | Processing ore |
 | Water Crystal | Slightly increases upgrade probability (T2) | Processing ore |
 | Ice Crystal | Moderately increases upgrade probability (T3) | Processing ore |
 | Angel’s Crystal | Greatly increases upgrade probability (T4) | Processing ore |
 | Lucky Crystal | Enormously increases upgrade probability (T5) | Lucky Set of Gem Exchanger (Cash Shop) |
 | Shiny Crystal of Luck | Very Enormously increases upgrade probability (T6) | Shiny Luck Jewel Coupon (Cash Shop) |
 | Brilliant Lucky Crystal | Extremely Enormously increases upgrade probability (T7) | Briliant Gem Set Exchanger (Cash Shop) |
 | Topaz | Barely Increases upgrade probability (T1) | Processing ore |
 | Terra Topaz | Slightly increases upgrade probability (T2) | Processing ore |
 | Poison Topaz | Moderately increases upgrade probability (T3) | Processing ore |
 | Land’s Topaz | Greatly increases upgrade probability (T4) | Processing ore |
 | Lucky Topaz | Enormously increases upgrade probability (T5) | Lucky Set of Gem Exchanger (Cash Shop) |
 | Shiny Gold Jade of Luck | Very Enormously increases upgrade probability (T6) | Shiny Luck Jewel Coupon (Cash Shop) |
 | Brilliant Lucky Topaz | Extremely Enormously increases upgrade probability (T7) | Briliant Gem Set Exchanger (Cash Shop) |
 | Obsidian | Barely Increases upgrade probability (T1) | Processing ore |
 | Lightning Obsidian | Slightly increases upgrade probability (T2) | Processing ore |
 | Wind Obsidian | Moderately increases upgrade probability (T3) | Processing ore |
 | Truth’s Obsidian | Greatly increases upgrade probability (T4) | Processing ore |
 | Lucky Obsidian | Enormously increases upgrade probability (T5) | Lucky Set of Gem Exchanger (Cash Shop) |
 | Shiny Black Jade of Luck | Very Enormously increases upgrade probability (T6) | Shiny Luck Jewel Coupon (Cash Shop) |
 | Brilliant Lucky Obsidian | Extremely Enormously increases upgrade probability (T7) | Briliant Gem Set Exchanger (Cash Shop) |
How to Upgrade Low Tier Gems
You can also upgrade low tier gems to higher gems to achieve good upgrade probability by using Blue Stone.
| Material 1 | Material 2 | Result |
|---|---|---|
 Blue Stone *1 | 10 T1 gems | Random (1 ~ 10) T2 gems |
| Blue Stone *1 | 10 T2 gems | Random (1 ~ 10) T3 gems |
New Gems in Latest RF Online
This new gems only applied in RF Online 4.55.
Radiant Gem Set (T8) and Heavenly Light Gem Set (T9)
Radiant Gem Combination Box
📌 NEW set of upgrading gems with a HIGHEST TIER than the Briliant Gem Set (BGS) / T7.
📌 “Radiant Gems” can be used for enhancement, boasting the highest enhancement success rate currently in the game. You can safely upgrade all item grades including Rare-M with this gems.
📌 Among them, “Radiant Rubies” and “Radiant Crystals” have special functions.
- If a
“Radiant Ruby” is used during enhancement, it can prevent the item from being damaged if the enhancement result is “Item Damage”. - If a
“Radiant Crystal” is used during enhancement, it can prevent the item’s enhancement from resetting to zero if the enhancement result is “Talics Reset to Zero”
Heavenly Light Gem Combination Box
📌 NEW set of upgrading gems, Heavenly Light Gem is a special enhancement gem series for Mythic-grade items and Awakening Mythic.. Please pay special attention before purchasing.
📌 Like the “Radiant Gem,” the “Celestial Gem” boasts the highest enhancement success rate currently available in the game.
📌 Among them, the “Heavenly Light Ruby” and “Heavenly Light Crystal” possess special functions.
- If the gem used during enhancement includes a
“Heavenly Light Ruby,” it can prevent the item from being damaged if the enhancement result is “Item Damage.” - If the gem used during enhancement includes a
“Heavenly Light Crystal,” it can prevent the item from being reduced to zero if the enhancement result is “Feather Stones Return to Zero.”
