Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat, color, and cut.
Diamond certified FL (flawless) by the GIA
Two diamonds of grade VS1 and SI2 respectively.
A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality almost no gem-sized natural diamonds are absolutely perfect. The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice. Depending on the hue and intensity of a diamond's coloration, a diamond's color can either detract from or enhance its value. For example, most white diamonds are discounted in price when more yellow hue is detectable, while intense pink diamonds or blue diamonds can be dramatically more valuable. Of all colored diamonds, red diamonds are the rarest. The Aurora Pyramid of Hope displays a spectacular array of naturally colored diamonds, including red diamonds.
The Hope Diamond, 45.52 carats (9.104 g), dark grayish-blue
Jewellers diamonds in groups of similar colors.[clarification needed] These from the National Museum of Natural History are a medium brown color.
The 296 gems of the Aurora Pyramid of Hope as exhibited in the Natural History Museum in London under natural light.