It sounds like the Ducal Gold is a type of engineered stone or tile that mimics the appearance of Italian Calacatta marble, specifically from the Carrara region which is renowned for its high-quality marble. This product has been designed to incorporate golden-yellow and silver veining to create a luxurious and striking contrast against the white background. The mention of "different designs of its faces" suggests that tiles can be placed in such a way to create a mirrored or symmetrical effect, enhancing the visual impact in upscale architectural and design projects. This material seems ideal for those looking to capture the elegance of natural Calacatta marble, with an added unique twist through the use of color and pattern variation.