
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.

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)
Brilliant 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)
Brilliant 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)
Brilliant 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)
Brilliant Gem Set Exchanger (Cash Shop)