What is the finest texture category of jadeite called?

The finest texture category of jadeite is known as Imperial jade. This designation refers to jadeite that showcases a vibrant green color with a translucent and fine texture, often with minimal to no inclusions. Imperial jade is highly prized and typically comes from specific mines in Burma (Myanmar). It is characterized by its desirable qualities, which contribute significantly to its value and status.

While the other terms like "old mine," "high grade," and "rare type" may refer to certain qualities or classifications of jade, they do not specifically represent the highest quality texture category that Imperial jade embodies. The term "old mine" could refer to jade mined from older sources that are known for quality, but it does not inherently indicate the best texture. "High grade" signifies superior quality but is not a recognized texture category. "Rare type" might denote jade with unusual characteristics or color, yet it does not equate to the esteemed craftsmanship and specific texture found in Imperial jade.