I was just going through this for a client of mine. I'm pretty sure only the rocks turn black--not the glass. So I think you can pick any color of glass without any problems. But your local fireplace store should be able to tell you for certain. Good luck!

Kristin, Thank You!!!!

One option is to keep the fire pit simple and use natural stone as a foundation, as pictured below. Then throw in your preferred color with your decor! This allows you to change up the look of your outdoor area as often as you'd like.

You can use a variety of media for your fire pit. Our recommendation would be that it is fire rated. Also, non-porous material is best to use for media as well as the capstone; can cause your media to pop and capstone to crack. Media Options