My fireplace looks somewhat dull and cement-y. I would love to hear more suggestions to make the stones look better. I am thinking about putting some clear coat to make it darker and shinier. Is that a good idea? What coating do I use?
Generally, cleaning then sealing can give you a shinier appearance. I emphasize the clean, since 90% of people skip that step. The sealers tend to give a wet stone look. It might not be darker but could bring out colors that your not seeing. So clean it, and see how it look wets first. Apply sealer as needed.