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2. Ruby - Wikipedia

   en.wikipedia.org/wiki/Ruby

   Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, alongside amethyst, sapphire, emerald, and diamond. [3] The word ruby comes from ruber, Latin for red. The color of a ruby is due to the element chromium.

3. Ruby (color) - Wikipedia

   en.wikipedia.org/wiki/Ruby_(color)

   This is an accepted version of this page This is the latest accepted revision, reviewed on 13 August 2024. Color that represents the ruby gemstone The topic of this article may not meet Wikipedia's general notability guideline. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it ...

4. List of rubies by size - Wikipedia

   en.wikipedia.org/wiki/List_of_rubies_by_size

   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 pinker than garnet , although some rhodolite garnets have a similar pinkish hue to most rubies.

5. Carmine (color) - Wikipedia

   en.wikipedia.org/wiki/Carmine_(color)

   Some rubies are colored the color shown below as rich carmine. The deep dark red color shown at right as carmine is the color of the raw unprocessed pigment, but lighter, richer, or brighter colors are produced when the raw pigment is processed, some of which are shown below. The first recorded use of carmine as a color name in English was in ...

6. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   A ruby appears red because it absorbs all other colors of white light while reflecting red. A material which is mostly the same can exhibit different colors. For example, ruby and sapphire have the same primary chemical composition (both are corundum ) [ 38 ] but exhibit different colors because of impurities which absorb and reflect different ...

7. Sapphire - Wikipedia

   en.wikipedia.org/wiki/Sapphire

   Chemical dopants can be added to create artificial versions of the ruby, and all the other natural colors of sapphire, and in addition, other colors never seen in geological samples. Artificial sapphire material is identical to natural sapphire, except it can be made without the flaws that are found in natural stones.