Rubies consist of aluminium oxide and chrome, the latter giving rubies their wonderful color. But chrome is also responsible for creating multitude of fissures and cracks inside the crystals. It is, therefore, rare to find rubies of considerably big sizes. The big sized rarity of rubies is almost always used as a solitaire gemstone rings to mark its significance.

Some rubies display a splendid and glorious silky shine called the ?silk? of the gemstone which is caused by the fine needles of rutile. Sometimes the rutile forms a star-shaped deposit within the ruby causing a mesmerizing light effect called asterism. Such rubies are called Star- Rubies and are precious rarities.

By far, the use of ruby in the gemstone jewelry industry was often witnessed in gemstone rings and pendants. The popularity of rubies in gemstone earrings is also gaining momentum in recent times.

The red of the rubies is a hot, passionate and powerful color. Rubies are considered as a perfect way to expresses compassionate and powerful feelings. Engagement Rings set in rubies are, therefore, thought to symbolize passionate love.

The value of a ruby depends on its color and attractiveness of the color. Rubies fall into various categories depending on their color and value. The top most category being the ?Burmese Ruby?. It does not necessarily mean that the gemstone is of Burmese origin; it is merely an indication of a rich, full red with slightly bluish hue of the concerned ruby, which is a peculiarity of the stones from the famous deposits of Burma, now Myanmar. The color is sometimes referred to as ?pigeon-blood-red?.

Other qualities that are determinants of the value of a ruby are cut, clarity and size, similar to that of other gemstones.