Jewellery Engraving

I have been using an array of Adobe software to design my engravings for various precious metals, and have been struggling to make the edges between engraved area and non engraved areas softer. For example the engraving stops and is usually a large height difference(reletively) instead of it being tapered even slightly. I know I can use a 3D sliced image to make this gradual however for general text engraving is there an easier way to do this? Any tips are much appreciated.