Body Jewelry › Silver Pendulum with Rainbow Obsidian (6 Gauge) Image 1 of 1 Silver Pendulum with Rainbow Obsidian (6 Gauge) $210.00 SOLD AS PAIR ONLY.3 3/4" in length.Oval obsidian measures at 1" x 1 1/2".From Diablo Organics. Add To Cart Added! SOLD AS PAIR ONLY.3 3/4" in length.Oval obsidian measures at 1" x 1 1/2".From Diablo Organics.