Natural Baltic Amber necklace. Length - 44 cm Weight - 23,5g with box Natural Baltic Amber is fossilized tree resin from ancient coniferous forests (dating back 40–45 million years) found in the Baltic region. According to the International Amber Association, it is defined as a gemstone that has undergone only mechanical treatment (like cutting or polishing) without any alteration to its natural properties. Item will be shipped by registered mail with tracking number.