Ruby
Ruby is a precious stone belonging to the corundum family of minerals. Its colour ranges from pink to blood-red, varying on the amount of chromium present in a certain stone. As to its gemmological value, ruby is considered as one of the most desirable gemstone. It is excellent to use in jewellery because of its durability. It rates 9 on Mohs scale of mineral hardness, following the world’s known hardest mineral - diamond, which is at 10.
Red Rain Ruby
Rubies are expensive, but there are currently a lot of jewellery manufacturers that use synthetic rubies offering more economical value. However, if you are looking for natural rubies, carefully choose your supplier and never hesitate to ask about the origin of the gemstone.