瑰: A stone second only to jade, rare and exquisite. In names, it often conveys the meaning of splendor and preciousness.
岸: "An" refers to the land by the water's edge and also conveys a sense of loftiness. It is used to describe someone who is tall and formidable.
Meaning: Gui symbolizes preciousness and beauty, like a gem; An represents steadfastness and strength, like the shore.