It is durable too, although a diamond is harder. This makes the white sapphire engagement ring vs diamond counterpart comparison all the more interesting. However, you can use the price disparity as the reason to go for the former.     Sapphire is known for its color, while diamond is known for its shine. A white sapphire gem gives off a milky color since it is its body color, while a white diamond is mainly colorless and only refracts the color of the light it receives. Both gemstones can be found in an array of colors though, from light pink and yellow to several hues of blue. Diamonds capture the light brilliantly and reflect it in an array of shimmer and shine. Generally, a diamond gives off shades of blue, yellow, and a spectrum of colors when light hits it. However, a white sapphire gives off practically no dark or light shades. Moreover, sapphires have a cloudier appearance and a significantly less amount of light refraction ability in comparison to diamonds. These properties of diamonds add to its value.