Jewel of Harmony (Yellow Option)

The Jewel of Harmony (JOH) is a special stone that enhances items in MuOnline. For weapons, there are 10 unique options available, while armor sets have 8 options, each affecting the item’s stats.

The stone can be applied to items and weapons similarly to Bless or Soul stones. Upon successful application, the JOH randomly assigns one of these options at the lowest level. Options that don’t meet the player’s expectations can be removed by NPC Jerridon in Aida. To upgrade an assigned option, players can use Refining Stones at NPC Osbourne, also in Aida.

How to obtain the Jewel of Harmony?

It drops from monsters on the Kanturu Relics map. Once you find it, you can go to the NPC named Elpis (Elveland 82,14) and exchange it for a Jewel of Harmony. The success rate is 80%. Details below.

Lower refining stone
NPC Osbourne: Aida 1 (78, 13)
Mix rate: 20% success rate (for regular item+4, minimum)
Adding to item: 40% success rate

Higher refining stone
NPC Osbourne: Aida 1 (78, 13)
Mix rate: 60% success rate (for Exc. item +4, minimum)
Adding to item: 80% success rate

Weapon options

Staff options

Armor (Set) Options

Important information: Some options are only available starting from a specific level, as indicated in the tables above. An item at +15 can have any option from the table, whereas an item at +0 is limited to only four options.

Guide from Game

Drop Gemstone for create Jewel of Harmony

Acquire Gemstones to exchange them for the Jewel of Harmony. Head to the Kanturu Relics map and slay monsters to collect them.

Creating Jewel of Harmony from Gemstone

Now, head to the AIDA map at coordinates 81,16. Click on NPC Elpis and select the “Refine Gemstone” option.

Place the Gemstone in the center and then click “Refine.”



If the mix is successful, you will receive a Jewel of Harmony.

Adding Harmony (Yellow) Option to Items

Now, simply pick up your Jewel of Harmony and drop it onto your chosen item in the game, just as you would with Souls, Blesses, or JOLs.

The Harmony option I obtained for this guide is “Min. Attack Increase +2.”

Now, you need to decide whether to enhance this option or remove it and use another Jewel of Harmony to apply a different one. The choice is yours. Above, you’ll find tables with a complete list of available options.

How to delete Harmony Option?

To remove the yellow option, click on NPC Jerridon (Aida 86,12), place the item from which you want to remove the option, and click “Restore.”

Now, you can use the Jewel of Harmony again to try adding a different option that satisfies you. Good luck!

How to upgrade Harmony (Yellow) Option?

To upgrade the yellow Harmony option, you need to have special stones: either a “Lower Refining Stone” or a “Higher Refining Stone.

Higher Refining Stone

Lower Refining Stone

How to create Lower Refining Stone – step by step?

You can obtain a Lower Refining Stone by bringing regular items found on spots to NPC Osbourne (Aida 78,12).

You can use here items from Firecracker.

Now, simply drop the Lower Refining Stone onto the item with the added Harmony option to enhance it.

How to create Higher Refining Stone – step by step?

To create a Higher Refining Stone, you need to bring Excellent (EXC) items to NPC Osbourne (Aida 78,12).

After placing the item and clicking “Refine,” you have an 80% chance of obtaining a Higher Refining Stone.

How to upgrade items using Lower and Higher Refining Stones?

To upgrade items with an embedded Harmony option, simply drag the Lower or Higher Refining Stone onto the item and drop it. The chances of upgrading with a Lower Refining Stone are lower than with a Higher Refining Stone, and the exact probabilities are detailed at the beginning of this page.

IMPORTANT – Additional points added using Lower and Higher Refining Stones may, with subsequent failed attempts, not only result in the loss of stones but also decrease the level of the Harmony option.