Currently, Inlay Gem has total 5 qualities: Primary, Advanced, Elite, Super and Mystic. The superior quality of the gem, the more attributes the gem can bring to your equipment.
Gem Refinery is a system for player to make the gem of a superior quality by you yourself without failure!

About Gem Refinery
Refinery is a system for players to produce the gem of a superior quality by themselves.
Material for Refinery: to refine a gem of a super quality, you need consume 5 same gems of the same level and same quality (inferior to the target quality), one corresponding Gem Refinery Charm, certain amount of Energy and money.
Gem Level | Max Refined Quality |
Level 3 Gem | Advanced |
Level 4 Gem | Elite |
Level 5 Gem | Super |
Level 6 Gem | Mystic |
Level 7 Gem | Premium |
For example,
To make one Advanced Valor Gem of Buddha (lvl 3), you need consume 5 Primary Valor Gem of Buddha (lvl 3), 1 Refinery Charm (Advanced), 10000 Energy and 1 gold.
Refine to | Advanced | Elite | Super | Mystic |
Money | 1 Gold | 5 Gold | 30 Gold | 100 Gold |
Energy | 10000 | 20000 | 40000 | 80000 |
Refinery Charm (Advanced) can be bought from Gem Inlay Admin at the price of 50 silver. Refinery Charm (Elite) can be looted from Veteran BOSS (level 70 or under level 70) and World Class BOSS. Refinery Charm (Super) can be looted from World Class BOSS (Level 70 or under level 70). Refinery Charm (Mystic) can be looted from the level 68 World Class BOSS.
The gem will be marked automatically after refinery, which means that a refined gem cannot be traded out.
How to Refine?
There are two ways to enter refinery system. The direct one is to open your character’s attribute box and click [Act], you will see the refinery icon in this sub-column.

The other way is to visit Gem Inlay Admin. This NPC can be found in several central towns (Stone City, Snow Village, etc) Talk to her and select [Gem Refinery] to open the Gem Refinery box.

[Gem Refinery] box:

1. Drag the 5 gems of the same type and same level to this area.
2. In section two, the required money and energy are shown below. The money can be paid by bound gold.
3. Section 3 is for a corresponding Refinery Charm. Refinery Charm (Advanced) can be bought from Gem Inlay Admin at the price of 50 silver.
4. After the 5 required gems are placed, section 4 will show the refined gem. Move the cursor to the gem to preview its attributes
5. Section 5 is for an Energy charm (not necessary) to reduce half energy.
Tips:
The Refinery Charm (Advanced) can be bought from Gem Inlay Admin at the price of 50 silver.
You can also choose to buy a Bag of Refinery Charm (Advanced) at the price of 25 Gold to open and get 50 Refinery Charm (Advanced) directly.
Energy Charm is an optional item to reduce half energy in refinery.