What is the difference between white sapphires and diamonds?

A white sapphire is any gem-quality corundum that is either white or colorless. With a few exceptions, a white sapphire looks remarkably similar to a diamond in terms of cut and color. Diamonds will always appear brighter and have more colorful flashes than sapphires. Both diamonds and sapphires are hard and will resist everyday scratches. On 1stDibs, find antique and vintage diamond jewelry and white sapphire jewelry today.