American diamond design earring They can frame the face and highlight its best features, such as the eyes, cheekbones, and jawline. They create an illusion of balance and proportion. Large earrings can help to create a more symmetrical and balanced appearance, which is considered to be attractive American diamond is an affordable gemstone that appears similar to a diamond but is very different from a diamond. Cubic Zirconia or American Diamond is a man-made cubic crystalline form of zirconium dioxide. It is hard and, generally, colourless and has a very close visual resemblance to real diamonds.