Reply To: Dirt Cheap Glass Filled Sapphire › Forums › Beginner Questions › Dirt Cheap Glass Filled Sapphire › Reply To: Dirt Cheap Glass Filled Sapphire October 27, 2019 at 12:23 am #5744 scottwkelleyParticipant @scottwkelley sure, why not. It is a treated stone. Get that polish on. You can get about 100ct in a box from the mine in Montana. Nothing as blue as the treated ones, lots of greens and assorted colors even red and orange. But those treated ones look like fun.