I initially wanted to use typography alone as my design, but as the brainstorm progressed I found that the simplicity of oak tree rings was a better option. I used a golden texture to signify royalty and taste, while overlaying this on a black background for a clean and classy finish.
I used a sans serif font, Lato, as it is clean and modern. It alludes to royalty while not seeming tacky.
Initially I wanted a perfect circle shape for the coaster, but felt that maintaining the natural tree shape would add to the uniqueness of the coaster.
And that's the basics of it. Enjoy!