The Grade and Value of Ruby

Ruby has a high grade and is the new favorite of China investment.

Ruby is one of the four precious stones and a precious colored gems. Even if we can accurately identify the authenticity and nature of rubies, the quality and price of rubies are still far from each other. For non-jewelry professionals, it is very important to clearly understand the quality connotation of ruby. All institutions in the world have given independent ruby grading systems and standards. Unfortunately, there is no unified ruby grading system in the world so far.

However, the classification system of ruby in China has not yet been introduced. Referring to the classification of international famous jewelry institutions and laboratories, Gemstone No.1 classifies the quality of rubies from five aspects: color, clarity, weight, cutting and treatment.

Ruby treatment method

1, heat treatment in rubies, it is very common to improve the color of rubies by heat treatment, and it is much more expensive and difficult to find without overheating treatment.

2. Untreated rubies are only cut and polished to improve their surface or durability. Heat-treated rubies are extremely rare, especially those over 3 carats.

3. Use dyeing materials to improve or change the color of rubies, which is not commonly used in natural rubies.

4. Fill with other materials, such as glass and ruby, to cover up surface defects.

5. The ruby is discolored by high-temperature diffusion and the use of chemicals, which is very rare in rubies.