Natural green color Baltic amber. Sterling silver 925. Amber is around 40 a 50 millions years old. Pendant length: 4.0 cm / Width: 1.5 cm Total weight: 2.9 gram Natural Baltic amber stone. No not containing any additional materials - substations, adhesives, not pressed synthetics, paints or the like. Tests to indicate the natural amber : has characteristic pine resin odor if to heat it; has characteristic color under the UV rays (UV light shows amber characteristic color (please see a picture) acetone-resistant. Shipping registered.