Why all Diamonds are Not White

Everyone knows that part, but what some do not get is that diamonds are not always white.

Colored diamonds exist, such as a champagne-colored diamond engagement ring. These are formed due to the presence of foreign particles during crystallization, besides the heat and pressure of course. These particles may be gas molecules or even radiation, which get trapped inside the lattice and eventually impart color to the formed diamond. With different minerals, you get different colored stones as the end result.

• Red and Pink: These are the rarest, colored by the absorption of green light and the reflection of the rest of the spectrum.
• Grey and Blue: These get their color from the presence of boron in the crystal. The red, green and yellow parts of incident light get absorbed, while the remaining portions are reflected.
• Violet and Purple: These diamonds have hydrogen present in the crystal lattice, making them very beautiful.
• Yellow and Orange: With nitrogen atoms present inside the crystal, diamonds give off a yellow color. The blue part of the spectrum gets absorbed.