A diamond's table is the largest facet seen when the diamond is viewed face up. In other words, it is the flat facet on the diamond's surface that you can see when you look at the diamond from above. A table is said to impact the diamond's brilliance and light performance. The main purpose of a diamond table is to refract light rays and allow the reflected light rays from within the diamond to meet the observer's eye. The ideal table will give the diamond stunning fire and brilliance.