This is a model of the famous ring fromThe lord of the rings , with writing Engraved

Ring basic size is 22 mm , scalable for any size desired
within the source file you can adjust the size , thickness , width , even the cross section curvature .also the model is subdivion readymodel made in blender 3.1.2 , no texture expect for the book scene , all material (psdf).you will get some files formats (stl,dae,fbx,...you are welcome to ask for more)you will get the .blender source files , you can add you adjustment to the model , do more subdivision , adding or removing details , or maybe to make a better renders.