Diamonds are the gemstone for those born in the month of April. This precious stone is the hardest of all gemstones as it scores a 10 out of 10 on Mohs scale. Diamonds come in many other colors than the typical white diamond that is seen by most people today. They come in blue, black, red, green, pink and very popular yellow as well. More and more people are buying colored diamonds because it gives them a feeling that they have something different and mostly because they are more rare to find. Diamonds will remain to be one of the most popular gemstones that are bought all around the world.