1, above level 50.
2. Pick up the task at the jeweler next to the warehouse in Chengdu.
To complete the task, you need to buy three items from Li, and the quantity seems to be two items each.
4, you can complete the task in the business.
Usage requirements of tricolor gold diamond:
The object can only be the main magic soldier or the bound mount, and the mount or magic soldier has been increased to 6. Then, put three colors on the blacksmith's forging page, the master's magic weapon is completely brilliant, and see the success rate 100%.
Personal advice:
Use tricolor gold diamonds where they are most needed, because tricolor gold diamonds can't be traded, so they can only be bound by words themselves, so each number has only one chance. It is strongly recommended to use gold weapon +7 or blue dual-attribute weapon +7 above level 60, otherwise you will regret it in the end.