Stunning Alexandrite Rococo Sterling Necklace. 8x10mm 3.6 Carat Nanosital Simulated Gem. Color Change Gem,Beautiful! Watch WHOLE Video As It Changes From Green In Natural Light/ LED Lighting, To Purple In Warm Fluorescent/Incandescent Lighting! 925 Sterling Silver Necklace with Cubic Zirconia Accents and Sterling 18" Box Chain. Gift Box Included. Great Gift! *Color Changing Effects Vary With Lighting. Gem Will Stay Green Outdoors