Ruby other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions may indicate that the stone has been treated. Ruby is the traditional birthstone for July and is usually more pink than garnet, although some rhodolite garnets have a similar pinkish hue to most rubies. The world's most valuable ruby is the Sunrise Ruby. Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder, with diamond having a Mohs hardness of
Ruby (color) Standard color lists were first formulated in 1930 and reached their present form in 1955. Ruby (color) Ruby is a color that is a representation of the color of the cut and polished ruby gemstone and is a shade of red or pink. The first recorded use of "ruby" as a color name in English was in 1572. Displayed at right is the Pantone color rubine red. At right is displayed the color ruber. The source of this color is: ISCC-NBS Dictionary of Color Names (1955)--Color Sample of Ruber (color sample #254). Medium ruby is the color called "ruby" in