Diamond, commonly known as "Jin Gangzuan", is a mineral composed of carbon, which is an allotrope of carbon.

As the most classic advertising slogan in the 20th century, "A diamond lasts forever, and an eternal one" resounded around the world like a nuclear explosion of love. In ancient eastern China, this sentence is even more meaningful. In a short period of 19 years, it completely changed the traditional custom of China people wearing gold and jade at weddings, and a diamond ring became the most beautiful token of their love.

2. Ruby

Ruby refers to red corundum, which is known as the "stone of love" and symbolizes the passion, beauty, eternity and loyalty of love. Ruby is the birthstone of July. Ruby with different colors comes from different countries, but it also represents auspiciousness. Some ancient books think that ruby is "the most precious of the twelve gems created by God when he created everything."

sapphire

Sapphire can be pink, yellow, green, white, or even multiple colors in the same stone. Sapphire and ruby are sister gems. Both of them belong to corundum minerals, which are the hardest natural minerals except diamonds on the earth. Sapphire symbolizes loyalty, faithfulness, love and honesty. Starlight sapphire, also known as "stone of destiny", can keep the wearer safe and bring good luck. Sapphire is a high-grade gemstone, one of the five major gemstones, ranking third after diamonds and rubies. Sapphire is the birthstone in September and autumn, and it is also called "sister gem" with ruby.

4. Emerald

Emerald, known as the king of emeralds, is a very precious gem (May Birthstone) and one of the four precious gems (red, blue, emerald and diamond) recognized by the international jewelry industry. Because of its unique green color, unique charm and magical legend, it is deeply favored by westerners, and recently, it has been more and more loved by China people. Among many silicate minerals, emerald is the most attractive color, so it is loved.