This belt is probably a marriage of a vintage buckle and a replacement belt made of off white or cream suede. If you wish to replace the fabric, it would be an easy job. It would also be easy to shorten the suede or make any size belt you want.
The buckle was made in Germany of some sort of composite material that is swirled and textured and finished in various metallic and black paints. It has a large Lucite on glitter teardrop as a focal point.
In its current condition the belt is for a 30 inch waist. It is easy to shorten but to make larger would mean changing the fabric.