One of the most expensive gemstones in the world is the red ruby. On the Mohs hardness scale, ruby has a rating of 9, making it the second hardest gemstone after diamond. Ruby is a variety of corundum, and the color of this magnificent gemstone ranges from red with hints of pink, purple, or orange, intense, intense to vivid, vivid or deep red.
As early as the Bronze Age, many royal crowns were adorned with rubies. This gemstone is considered one of the most precious in nature, as there are far fewer unique and pure rubies in the world compared to diamonds. Rubies can be cut into various shapes and worn on any part of the body.
✦ Occurrence and mining:
One of the most valuable rubies was mined near Mogok, in central Myanmar (Burma). Precious rubies can be found in almost every region except Antarctica. The highest quality and most expensive rubies come from Burma, Mozambique, Thailand, Tajikistan, Sri Lanka, and Madagascar.
✦ Factors affecting value:
Most rubies are prized for their natural vivid red color and clarity. Their color is often described as 'pigeon blood'. Rubies that have not undergone treatment with various technologies to enhance color and clarity are certified by the world's top gemological laboratories. Among colored gemstones, laboratories like GÜBELIN, GRS, and SSEF play a crucial role in gemstone examination.