As we mentioned earlier, there are a number of environmental factors that can exist in the area of a diamond formation that will produce a coloured diamond as opposed to a naturally colourless one as we are so used to seeing in diamond rings. The different factors will create different colours of stones for diamond rings and the shade of each colour will be determined by the concentration of the environmental factor affecting the stone formation that will be used to create the coloured diamond rings. The primary colour groups of diamonds that can be found in nature that can be used to create coloured diamond rings are blue, pink, brown, and yellow. Of course, coloured diamond rings can be found in many more colours than this, but these are the four primary families of colours to which most of the other coloured diamond rings will belong. Yellow diamond rings are perhaps some of the most well known thanks to the famous canary diamond. Diamond rings in the yellow diamond family can be found in a range of tones and can be used to create an assortment of coloured diamond rings, ranging from beautiful pastel pale yellow to bright yellow diamond rings that have almost a neon appearance. Orange diamond rings can also be found, though this colour is more rare than the yellow diamond rings. Both yellow and orange diamond rings are produced when a high concentration of nitrogen is present in the area where the normally colourless stone for the diamond ring is being formed. As the nitrogen bonds with the carbon in the diamonds, carrying shades of yellow and orange are created, making for a stunning range of shades to create dazzling diamond rings from. The higher the nitrogen content in the area, the darker the yellow tones in the coloured diamond ring will be, with orange toned diamond rings containing the highest amounts of nitrogen for this colour grouping. Unlike standard white diamonds, the darkness or lightness of the colour in these diamond rings is not always ranked from better to worse. Instead, the desired colour for a coloured diamond ring is based more on personal preference. While an orange toned diamond ring may be more rare than a pale yellow diamond ring, the yellow diamond ring may be more popular based on personal preference alone.