For as classic and timeless as diamonds are, they also happen to be the birthstone for the month of April. Diamonds are typically found in alluvial deposits, which are essentially sites of volcanic rock. These deposits are found worldwide, however most diamonds in the market today come from South Africa, Botswana, and Russia. Diamonds come in a variety of colors, which also help determine the value of the gemstone. The more saturated with color the gemstone is, the more expensive the diamond tends to be. Not surprisingly, the Diamond is traditionally used for engagement and wedding rings as it represents love, clarity and the bond in a relationship.