Corundum Knowledge

The basic introduction of Corundum

Corundum, with the chemical formula Al₂O₃, is an important material with properties such as high hardness, high melting point, corrosion resistance an

view more

How to buy a good sapphire

Sapphires are one of the most desirable and valuable gemstones in the world, prized for their stunning color and durability. Due to their popularity,

view more

The difference between ruby and sapphire

Rubies and sapphires are two of the most popular gemstones in the world. They are both members of the corundum family, and they are both known for the

view more

What is Corundum

Corundum is a mineral and oxide of aluminum, which is a very hard, tough, and durable material. The mineral was first discovered in emery mines in Tur

view more

What is Ruby

The concept of ruby: ruby is a beautiful and transparent gem grade corundum. Ruby is one of the seven precious gemstones in the world, and it is a pre

view more

What is Sapphire

Sapphire is a precious gemstone which is valued for its unique beauty, rarity, and durability. The word sapphire is derived from the Latin word "sapph

view more