Because I studied antique jewelry, I always wanted an octahedral diamond ring, which is the earliest form of diamond ring. Because the diamonds were later cut, in fact, even in the museum, very few survived, and most of the surviving diamonds could not bear to look at the texture. This is made in Japan now. It uses a gold-dividing process, and the ring holder has a retro charm, which is somewhat similar to the Italian moonstone ring I bought before. I like uncut raw ore very much.