Sapphire is the September birthstone. September is also considered a month full of hope. Sapphires, a symbol of love, loyalty, hope and fraternity, were regarded as "guiding stones" by Oriental nations in ancient times.
The English name of sapphire is derived from the Latin “Sphins”, meaning blue. The mineral name of sapphire is corundum, which is a corundum mineral. In addition to the red gem-quality corundum in nature called ruby, the blue, light blue, green, yellow, gray, colorless, etc., all are sapphires custom name rings.
The chemical composition of sapphire is aluminum oxide (Al2O3), which is blue due to the trace element titanium (Ti) or iron (Fe). It is a trigonal system. The shape of the crystal is often cylindrical, short column, plate, etc., and the geometry is mostly granular or dense block. It is transparent to translucent with glass luster birthstone ring. The refractive index is 1.76-1.77, the birefringence is 0.008, and the pleochroism is strong. Heterogeneous, sometimes with a special optical effect - starlight effect. The hardness is 9, and the density is 3.95-4.1 g/cubic centimeter . Under certain conditions, it can produce a beautiful sextet of starlight, which is called "starlight sapphire".
The biggest feature of sapphire is that most of the colors are uneven and the dichroism is strong. For example, the sapphire cute necklaces for girlfriend produced in Myanmar has a bright and uniform blue color, which can produce six or twelve rays of starlight due to inclusions. Sapphire produced in Kashmir, Indian, is high quality sapphire. Sapphire produced in Sri Lanka, Thailand, China and Australia also has its own characteristics. At present, the most popular colored sapphires are the pink orange sapphires personalized birthstone necklace produced in Sri Lanka. The pink and orange colors are present at the same time, and the two colors reflect each other.
Stone of Royal family
Sapphire with its crystal clear beautiful color, second only to the hardness of diamonds, was covered a mysterious supernatural color by the ancient people. It was regarded as an auspicious thing and became the stone personalized mothers rings of Royal family. As early as ancient Egypt, ancient Greece and Rome, it was used to decorate mosques, churches and temples, and as a tribute to religious ceremonies.
In the 19th century, it was because of the sapphire that was praised by the world as "the owner is King" and changed the fate of Napoleon and his wife Josephine. It has also become an indispensable accessory in the crown of the Emperor. From the beginning of Peter the Great, the Russian monarch is full of crazy love for sapphire necklace photo. The famous "Russian Diamond Treasure House" still has 1,700-carat large grain sapphire and 2,600-carat small grain sapphire in its inventory even though 75% of the precious stones are stolen and transferred to the folk.