12, Jul, 19 3min Lesedauer


The ruby

Red is the color of ruby, the king among gemstones. For thousands of years, it has been considered one of the most valuable gemstones in the world.

The history of ruby


For a long time, India was considered the classic country of origin of the ruby. Today it is known that the ruby is found in several parts of the world. The different shades of red go back to the different places of origin. Rubies from Thailand often shine a darker red, while rubies of Vietnamese origin are often a bit more purple in hue.


Properties of ruby: ruby as an investment


Ruby is the red variety of the mineral corundum, one of the hardest minerals in the world. Pure corundum is colorless, only traces of elements such as chromium, vanadium, iron or titanium are responsible for the coloring. On the Mohs scale, with a value of 9, they are the second hardest element after diamond. Beautiful, clear and pure rubies are extremely rare. Inclusions hardly affect the quality. They only reduce the quality if they change the transparency of the stone or are directly in the center. Alle Einschlüsse sind einzigartig und beweisen die Echtheit des Rubins, sowie seinen natürlichen Ursprung.

  • Occurrence: Madagascar, Myanmar, Mozambique, India
  • Colors: red, pink red
  • transparency: transparent; there are also translucent rubies, mostly in cabochons
  • Hardness: 9.0
  • Density: 3.97 to 4.05
  • Carat price: € 150 to 65,000/ct; Stones over 4 carats are considered rare




Our gemstones

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