Ruby: The mineral name of ruby is corundum, which is second only to diamond, with a Mohs hardness of 9, second only to diamond, and a density of 4 grams/cubic centimeter. Produced in Myanmar, Thailand, Sri Lanka and other Southeast Asian countries. Myanmar is the world's leading source of high-quality rubies, with "pigeon blood" being the best, followed by garnet red, rose red and  so on.

Ruby is the July birthday stone, a symbol of enthusiasm and noble character, for thousands of years by the world's favorite. In the traditional sense, ruby represents passion and love, so ruby is also called "stone of love". Since ancient times, red is an auspicious color, ruby is also regarded as a mascot, representing a blessing, legend as long as wearing a ruby ring on the left hand, it has a magical power, can be found in luck, enemies into friends, its energy can help people master leadership, but also to enhance spirituality.

Sapphire: The mineral composition of sapphire is the same as that of ruby, so it is called "sister gem".For September birthday stone. Sapphire is known as the stone of wisdom, can help open wisdom, enhance the ability to inform and creativity. Because it has become an indispensable ornament on the crown of emperors in many countries in history, it is known as the "imperial stone".