Schluter is a brand name. You are likely referring to profile edges. Made by many MFG and schluter is but one of many.

For NON thru body porcelain edges you can do a few things..

A. Look into a "Pencil edge" to cap or terminate all unfinished edges.

B. Utilize mitered and back beveled finish edges with miter returns.

C. Back bevel all outside edges and fill with matching grout to detail.

Miters will add a cost componant to labor and you will need a skilled tile mechanic for this. Pencils will add material cost and a bit of labor. The back bevel edge will also add time/labor and require a skilled tiler to look seamless. Theres also fired edges that likely can assist in making a bullnose match.....

http://www.americanbullnose.com/blog/tile-trim-selection-guide

Just a few options..-Best