Ruby has a color range of red, slightly bluish red known as "pigeon blood red", slightly purplish red, strongly purplish red, and orangy red. The finest color is a vivid, almost pure spectral red with a very faint undertone of blue, as seen in Burmese ruby. The color of ruby is due to impurities of iron and chromium content. High chromium content creates the best colored ruby but at a cost. Chromium inhibits crystal growth so ruby gems of over three carats are very rare.
The origin for the name ruby is thought to be from the Latin word "rubrum" meaning red. It was not until about 1800 that ruby, as well as sapphire, was recognized as belonging to the corundum species. Before that date, red spinel and red garnet were also designated as ruby.
Mozambique Ruby Un-heatedTreatment: None
Shape: Oval brilliant step cut
Clarity: lightly included; eye clean
Weight: 1.09 carats
Color: Medium pinkish Red
Beautiful medium tone pinkish red color. Super fluorescence in U.V. lighting. Certified as natural ruby with no thermal enhancement by the Tokyo Gem Laboratory. Special terms and conditions apply to the purchase of this fine gemstone.