Ruby

Colour:	Red
Cut:	Round
Size / Diameter	2mm
Carats*:	0.07

The red colour of a ruby varies within each deposit. The distribution of colour is often uneven, in stripes and spots. Chromium provides the red colour and in the case of brownish tones iron is present in the ruby.

Ruby is the third hardest mineral; however the hardness varies in different directions. As it is brittle, care must be taken when cutting the ruby.

Inclusions (minerals, growth structures, canals and other cavities inside the ruby) are common. They are not always indicative of lower quality, but are used to identify the source area of the ruby.

Other varieties of gem-quality corundum (of which ruby is a variety) are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald, and the diamond.

Rubies have historically been mined in Thailand, the Pailin and Samlout District of Cambodia, Burma, India, Afghanistan and in Pakistan.

The ruby is considered a birth-stone for July and one of the stones for Tuesday. Ruby is associated with Aries, Leo, Scorpio, and Capricorn in the zodiac. Ruby is one of the planet stones for Mars and Pluto.

The ruby in crystal healing

Crystal healing practitioners believe that ruby aids in the healing of the sciatica, varicose veins, and toenails.

The round cut ruby

The round cut ruby is a faceted cut of the ruby gemstone. The faceted cut ruby in the round shape receives its character from the variety of small planes, or facets, which form the round look. The ruby, once roughly round shaped is faceted on horizontal grinding wheels.

* Carat - is the unit of mass of gemstones (abbreviated as ct or cts plural). A carat is equal to 200mg or 0.2g in the metric system (1ct =200mg). The carat is divisible into one hundred points of two milligrams each. Sometimes known as the "metric carat". Not to be confused with karat (or also carat) in relation to gold which refers to the quality and not the mass.

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