Lapis Drop + Mammoth Diamond EarringsNatural deep blue lapis drop and mammoth ivory diamond shape earrings are fully backed and set with rhodium plated sterling silver and finished with lever backs. 2. 5 length Prehistoric woolly mammoth ivory is found in the cold northern regions of Alaska, Canada, Russia, and Siberia, and may range in age from 10,000 to 200,000 years. Natural colors may include cream, tan, chocolate or caramel brown depending upon where the material was buried, and for