Incredible Color-Change Zultanite Stone, Changes in Different Lighting From Green-Purple-Brown-Red Watch Whole Video For Colors! This Lab-Created Diaspore Stone Is Amazing! in Evening Low Light It Is Both Colors. Big 13x18mm Gem, 925 Sterling Silver Unisex Pendant, 18" Sterling Silver Chain. Chain Length Options Available By Messaging Seller At Time Of Purchase. Great Gift For Him Or Her! Gift Box Included. The Green Color Was Acheived in Incandescent/Fluorescent Lighting, The Pink in Natural Lighting Color-Change Zultanite Necklace, Watch Whole Video For Colors 13x18mmlab Created Simulated Gem, 925 Sterling Unisex Pendant W/Sterling Chain