Hi! We used a schluter edge called "jolly." Here it is in bronze to match the plumbing fixtures but yes, you can also get it in white. https://www.schluter.com/schluter-us/en_US/Profiles/For-Walls/Edging-&-Outside-Wall-Corners/Schluter%C2%AE-JOLLY/p/JOLLY
What is the floor tile? Stone?
Lemmo Architecture and Design
Marcie Bell