Can Chow Tai Fook's black chalcedony be better than black agate?

Can be better than black agate. Black chalcedony is a kind of artificial gem, which is made from natural chalcedony by dyeing. Its color is uniform, and there is no texture and change of natural chalcedony, so its price is relatively low in the market. Chow Tai Fook black agate is a natural gemstone with naturally occurring textures and patterns, and its color may change from dark black to gray or brown. Black agate is more expensive in the market, especially black agate with high quality and unique texture. Therefore,