This is mainly because of the fact that most of the sapphire diamond rings available in the market are eye-catchy and unique. The immense popularity and craze for sapphire diamond rings begin when Prince William proposed to his girlfriend Kate Middleton a few years ago. William gifted his late mother’s gorgeous 12 carat blue Ceylonese sapphire ring to Kate Middleton on the occasion. This event caused the sales of sapphire diamond rings to skyrocket. Several customers who are in the market to buy a sapphire diamond engagement ring have a misconception that these diamonds are only available in blue color. However, the reality is that sapphire diamond rings come in a wide variety of different colors. Another major reason why customers and couples choose sapphire diamond rings over other diamond rings is that they are highly affordable. However, it is significant to note that most of the blue colored sapphire diamond rings come at a higher price.