Five kinds of gemstones: the king of gemstones-diamond, the king of green gemstones-grandmother, the luxurious and auspicious gemstone-ruby, the solemn and elegant gemstone-sapphire, and the precious and exotic gemstone-golden emerald, also called golden green cat's eye (cat's eye for short).
King of Emerald: Emerald
Jewelry queen: pearls
The landlord asked about the king of gems-diamond, the king of emeralds-grandmother, the luxurious and auspicious stone-ruby, the solemn and elegant stone-sapphire, and the precious and peculiar stone-golden emerald.
diamond
Mineral diamond is the hardest substance in nature and is known as the "king of gems". It is best to be colorless and transparent. Colorless and bluish diamonds are called "fire and water diamonds" and have the highest value.
Pink, blue, green and gold are rare and precious.
Produced in South Africa, Australia, Russian and China, Liaoning, Shandong and other places.
Cullinan is the largest gem diamond in the world, which is produced in South Africa and weighs 3 106 carats.
China's national treasure "Chang Lin Diamond" is produced in Shandong and weighs 158.786 carats.
emerald
As an beryl mineral, it is known as the "king of green gems" because of its special crystal green. It is said that its green beauty is beyond the reach of any green gem.
Emeralds are the best, and high-quality emeralds are all produced in Colombia.
ruby
The mineral name corundum is a precious gem second only to diamonds, with a hardness of 9, second only to diamonds.
Produced in Myanmar, Thailand, Sri Lanka and other Southeast Asian countries.
Myanmar is the main producing area of high-quality rubies in the world, among which "pigeon blood red" is the best, followed by pomegranate red and rose red.
Ruby is the birthday stone in July, symbolizing enthusiasm and noble character, and has been loved by the world for thousands of years.
sapphire
The mineral composition is the same as ruby, so it is called "sister gem".
Sapphire in a broad sense includes all kinds of gem-grade corundum except red, and Indian-occupied Kashmir cornflower sapphire has the best quality, but it has been mined.
Previously, high-quality sapphires were mainly produced in Myanmar and Sri Lanka, with bright sky blue as the best, followed by indigo blue and light blue, and also produced in Shandong, Jiangsu, Hainan and other provinces in China.
For the birthday in September.
Golden green cat's eye
The mineral name is chrysoberyl, and its hardness is 8.5, which is second only to diamonds and rubies.
There are many colors such as cyan yellow, honey yellow, yellow brown, etc., with deep honey yellow as the top grade, produced in Sri Lanka.
When it has a color-changing effect, it is called metamorphic rock (emerald), which is green in sunlight and red in incandescent lamp. It is also a precious gem.