Stone
Ruby
Ruby is the red variety of corundum, prized for its rich color, brilliance and exceptional durability. Fine rubies range from vivid red to slightly purplish or pinkish red tones.
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Ruby is the red variety of corundum. Chromium is the trace element responsible for its red color. It ranks 9 on the Mohs scale and combines high hardness with excellent toughness and no cleavage, making it well suited to jewelry.
Color is the leading quality factor. Fine ruby ranges from pure, vibrant red to slightly purplish red. Treatments can affect care requirements, so cleaning advice should follow the stone’s verified treatment status.