I dont have current market prices available, so I cannot provide you a specific answer. However, Imperial Grey Marble is considered a premium marble, and like any premium marble, it tends to be expensive due to its rarity, quality, and beauty. Factors such as quarry location, vein patterns, and slab sizes are also important in determining the cost of this type of marble. The final price will vary based on several factors such as the size of the area to be covered, the quality grade of the marble, and the installation fees.