Algeria White Marble does not conform to a specific grade classification. The grading of marble is typically based on factors such as color, mineral composition, veining patterns, and overall quality. There are different types and variations of Algeria White Marble, each with its own unique characteristics. The grade of the marble can vary depending on the specific quarry and the block being extracted. It is best to consult with the supplier or manufacturer to determine the grade and quality of the Algeria White Marble being offered.