You can check out game guide on 12SKYM-Reborn
● Overview
ㆍ You can craft Jewels and insert them into the sockets of your equipment to further enhance your character's abilities.
ㆍ Jewel has a total of 7 stages, and you can upgrade the stage of the jewel through Jeweler's bottle.
ㆍ There are 2 sockets in [Unique] and [God] grade armor, and each socket has a jewel that can be equipped.
ㆍ Jewel can be obtained by hunting in 'The Abyss' and 'Den of Evil'. It can also be purchased at the gold shop.
ㆍ Jewel can be extracted, and 10,000 gold coins are consumed when extracting.
● Jewel types
※ Jewel types will be continuously added through future updates.
● Jewel Craft
ㆍ You can upgrade the Jewel stage using the Jeweler's bottle.
ㆍ If the crafting is successful, the jewel stage will be upgraded, and if it fails, the Jewel you attempted to craft will be destroyed.
ㆍ Jewels equipped in sockets cannot be crafted, but can be crafted after extracting them.
ㆍ If the crafting is successful, the jewel stage will be upgraded, and if it fails, the Jewel you attempted to craft will be destroyed.
● Crafting fee
● How to craft
:: Select the Jewel to craft and touch the 'craft' button.
※ If you do not have a Jeweler's bottle, the 'craft' button will be disabled and crafting will not be possible.
:: Touching 'craft' will proceed with jewel crafting.
:: If crafting is successful, the jewel will be upgraded to the next stage.
:: If crafting fails, the Jewel you crafted will be destroyed.
● Jewel insert method
① Touch the equipment you want to insert Jewel.
② Touch the 'Jewel' button.
:: Touch the socket where you want to insert the jewel.
:: A list of jewels that can be inserted into the selected socket will be displayed.
:: Touch the equip button to insert the jewel into the corresponding socket.
:: Touch the extract button of the inserted jewel.
:: Touch the confirm button to proceed with the jewel extraction. 10,000 gold coins are consumed when extracting a jewel.