I am loving this stone combination. The top stone is a rainbow obsidian. I find the rainbow obsidian mesmerizing as the stone appears black and then the color changes with light and movement. The rainbow obsidian is said to remove negative thought and replace them with empowering ones. The stone brings enjoyment to your life. Pairing the rainbow obsidian with the black tourmaline is to give more protective an grounding powers. I hope the wearer of this pendant feels empowered, happy and loved. This pendant is 2 5/8 inches and comes on an adjustable black cord necklace.