Which one is more valuable, colored but without bottom or bottom without color? There are many aspects to consider when measuring the value of jadeite.

When jade experts talk about jade, they often mention the word "bottom", which leaves laymen confused. What is the “bottom” of jadeite? The "bottom" of jadeite is also called the "ground" or "ground". "Bottom" is the human eye's intuitive feeling of the appearance and interior of jade jewelry, and it is also an indicator for comprehensively evaluating the quality of jade. When evaluating the "base" and quality of a finished or semi-finished jade product, the main thing to look at is the effect of the mutual reflection between the jade, its type and water. Among the many indicators for evaluating jade quality, such as color, texture, transparency, base, craftsmanship and weight, the most visible but intangible one is the "base". "Bottom" refers to the characteristic of the light green base part other than green. It is a comprehensive reflection of the jade's texture (type), transparency (water), gloss, clarity and light color tone.

In the two pictures above, the first one has a gray background with full green, while the second one has a clean background but the color is not as dark as the first one. Which one is more valuable? It’s hard to say. Some people like the green of the first one, while others like the transparency of the second one. The value cannot be measured from a single aspect.

The "bottom" is more of an aesthetic indicator, so the evaluation of the quality of the "bottom" is not quantifiable. The base color is a color other than emerald. When jade is colorless, the "base" is a comprehensive reflection of its type, water, gloss and clarity. When jade is full green or full color (orange, yellow, black, etc.), the color and the base are integrated. At this time, the "base" is a comprehensive reflection of its type, water, color, gloss and clarity. It can be seen that the "base" of jade includes two key elements and three general factors. The two key elements are texture (type) and transparency (water), and the three general factors are gloss, basic color and clarity of jade. Therefore, when evaluating the quality of the "base" of a finished or semi-finished jade product, the main thing to look at is the effect of the mutual reflection between the jade, the type and the water.

The "base" of jadeite should be solid in texture, dense in structure, highly transparent, with a soft luster, and the main color (green) should be coordinated with the base and the entire jewelry and opening. After processing, the surface of the clean and delicate jadeite is very smooth. It is transparent and moist under the light, which can fully reflect the charm and aura of the jadeite. Business people in the jade industry call this phenomenon "full of precious energy." The quality of the "bottom" is directly related to the processing quality and ornamental effect of jadeite materials, and affects the quality grade and commercial value of jadeite pieces.

Many people confuse the concepts of "type" and "base" when buying jade. In fact, there is an essential difference between the two. The first one focuses on the microscopic indicators of the internal structure of jade, while the bottom one focuses on the external, macroscopic overall feeling. Generally speaking, poor quality leads to poor base, but good quality does not necessarily lead to a good base. Therefore, when players choose finished jade products, they should not only look at the type, but also the bottom, the quality of the color, whether the jade is clean and not dirty, and whether there are any lines or cracks.

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