Seasoned collectors also know that studio work when accompanied by a hand painted signed presentation box by same, often doubles in future resale value. Custom order your own for an additional $92. The 25mm X 18mm ametrine gemstone shows lovely carvings all over! Checkerboard, pinecone pineapple, feathers? While all the metal was worked by one set of hands here in USA, the ametrine is most likely from faraway lands.