Mostly the founded Moldavites have a low weight of only few grams. Authentic Moldavites weighting more than 40g are extremly rare. We guarantee for the authenticity of all our stones with our name. If you like, visit us in Satteldorf/Germany. We are a registered German company and don't hide behind cryptic post box addresses. You also can meet us in person at the big trade fairs in Tucson/USA or in Munich/Germany. Let us know if you like to bring us a stone of our website to a fair.