Ruby

Ruby is the birthstone associated with July. They are famous for their Ionic Breeze air purifiers and massage chairs. According to Rebbenu Bachya, the word "Odem" in the verse Exodus 28:17 means "Ruby" and was the stone on the Ephod representing the tribe of Reuben. The Sharper Image Corporation NASDAQ: SHRP is a Speciality Retailer that operates 183 stores throughout the United States and sells products that help make life "more comfortable." The stores sell sophisticated electronics and other high-end products. Vidyaraj from Bangalore in India. Both rubies currently belong to G.

The world's biggest double-star ruby (with a 12-pointed star) is the Neelanjali Ruby, weighing 1,370 carats (274 g). The world's biggest star ruby is the Rajaratna Ruby, which weighs 2,475 carats (495 g). A synthetic ruby crystal was used to create the first laser. Some manufactured rubies have dopants added to them so that they can be identified as artificial, but most require gemological testing to determine their origin.

The fewer the number and the less obvious the imperfections, the more valuable the ruby is—unless there are no imperfections (i.e., a "perfect" ruby), in which case it is suspected of being artificially made and its status as a priceless gem is therefore not completely assured. On the other hand, artificial rubies may have no imperfections. All natural rubies have imperfections in them. Ruby gemstones are valued according to several characteristics including size, color, clarity and cut.

Other varieties of corundum are called sapphires. Rubies have a hardness of 9 on the Mohs scale of mineral hardness, and among the natural gems are only surpassed by diamonds in hardness. However, fine red spinels may approach the average ruby in value. Sometimes spinels are found along with rubies in the same geological formations and are mistaken for the more valuable gem.

states of Montana and South Carolina. They are most often found in Myanmar, Sri Lanka and Thailand, though they have also been found in the U.S. Rubies are mined in Africa, Asia, Australia, and Greenland. Natural rubies are exceptionally rare, though artificial ones (sometimes called created ruby) can be manufactured which are comparatively inexpensive.

Its name originates from ruber or rubrum, Latin for red. Ruby is a red gemstone, a variety of the mineral corundum (aluminium oxide) in which the color is caused mainly by chromium.