Sapphires are one of the most popular gemstones. They are mostly found in blue hues are available in other colours including pink, orange, yellow, green, and purple. In some cases, a combination of two or more colours can be found, this is referred to as a parti sapphire. With a grading of 9 on the Mohs scale, the sapphire (and ruby) are the strongest gemstones after a diamond – providing comfort to its wearer that it is extremely durable! Sapphire gemstones originate from the mineral corundum, the same mineral as ruby. When red corundum is found, it is classified as a ruby. Whereas pink corundum will be deemed either a sapphire or ruby based on the gemstone's origin. This gemstone can be found in several countries including Australia, India, Madagascar, Mozambique, Myanmar, and Sri Lanka. The sapphire is the birthstone for September and symbolises nobility, truth, sincerity, and faithfulness. Due to the vibrant hue of sapphires, the blue sapphire is now used as a scale in which all blue gemstones are measured.