The most powerful gemstone, the birthstone of July, is ruby ​​or sapphire

The ruby ​​is the most powerful gemstone in the universe, and is associated with the presence of many star signs.
Owning it is said to give reassurance and peace. And putting it under the pillow works to ward off bad dreams. Ruby rings should be worn on the left hand to receive life force and provide protection.

It is given as a gift as a symbol of friendship and love, and it is also a symbol of vitality and royalty as it bestows courage.

Therapeutic properties:

It works with the blood flow as an aid in the circulation, as it helps to cleanse and get rid of infection or germs in the blood.
The color of the ruby ​​is red, and the most requested color is “pigeon blood”, which is pure red with shades of blue.
If it is very pink then it is a pink sapphire. The same is true if it is also violet, then it is a violet sapphire.
The best ruby ​​and star ruby ​​are bright red in color.
Most of the ruby ​​comes from Burma, Thailand and Africa.

The word sapphire (also called sapphire) is used to denote the different types of gemstones from the mineral corundum, which is aluminum oxide when it has a color other than red, then it is called sapphire. Orange, green, and purple sapphires are cheaper than blue in price, and green and yellow are common sapphire colors, but the higher the degree of pink according to the amount of chromium, the higher the monetary value of the stone as long as it goes towards the red color of the red sapphire. Because of its hardness, sapphire is used in infrared lenses, watch crystals and high-strength windows. Rare types of sapphire are known as color-changers. The color of the sapphire is blue in daylight and purple under neon light, and the color of the reflection varies according to the color of the sapphire stone. Tanzania is the main source of color-changing sapphire. There is also star sapphire or asterism, and it contains star sapphireOn a transverse needle, the needles often resemble rutile metal, and the metal consists mainly of titanium dioxide, which causes the appearance of a six-rayed star when seen with a light source shining on it from above. The value of a star sapphire depends not only on the carat weight of the stone but also on the color of the body, the transparency and the density of the star cluster.

The Star of India is believed to be the largest star sapphire in the world and is currently on display at the American Museum of Natural History in New York City. The presence of the 182-carat (36.4 grams) Bombay star in the National Museum of Natural History, in Washington, DC, is a fine example of a star sapphire. Sapphire mining regions are: Myanmar, Madagascar, Sri Lanka, Australia, Thailand, India, Pakistan, Afghanistan, Tanzania, Kenya and China. The main home of the Bombay Star is the mines of Sri Lanka. Madagascar leads the world in sapphire production (as of 2007) and before Australia was the largest producer of sapphire (until 1987) and in 1991 a new presence of sapphire was discovered in southern Madagascar.