Help with Perfect Bevel Effect Please

Thanks for your input guys!

ponytail1414​, I went to bed early yesterday, hence my late reply, sorry. Yes I did make sure there were no white lines, even imported a vector path and filled it, to be 100% sure, but still the same thing happened.

rayek.elfin​, I just tried converting the png to a 3D object in Photoshop. Sadly, the same curvature appears as in traditional 2D version. Very impressive job you did there with Blender. I actually do have a correct 3D object, though it's done in SketchUp not in Blender. I remember I tried learning Blender several years ago but dropped it after 15 minutes, because of its UI mess and unnecessary complexity and uncomfortable controls but never stopped admiring works created with Blender.  I heard the people behind Blender have plans to remaster the program soon and make it more welcoming, is it true?

Trevor.Dennis​​, I hope I understood you right. Please see the screenshots below. Did you mean to mask the area left of the vertical guide and then copy the result and flip horizontally? Here's what I got:

Thanks again guys, for your help. Great community!

You can fudge it without resorting to 3D by using separate layers for each side, like Ponytail suggested, and checking Layer Mask Hides Effect.

I made a quick test in Blender for you. Download the Blender file here:

http://www.upl.co/uploads/beveltest1555207467.zip

You will need Blender 2.8 to open it. Download it here:

https://www.blender.org/2-8/

Feel free to experiment with the lighting and materials. I just played around a bit to show you what is possible. The lighting is not great, but easily adjustable.

Btw, this is a realtime render in Blender's new awesome Eevee render engine! What you see in the viewport is what you get!

What if you split the sides into 2 separate layers and applied the bevel & emboss to each separately, then joined them together?

The above isn't exactly how it would look, but you get the idea.