Appreciation of ancient jewelry pictures? Teach you how to identify various types of jewelry.

Ancient jewelry usually depends on its color, weight, cleanliness and whether the cut surface can express bright features. Consider whether a diamond is worth buying. The first condition is to see if the diamond is inlaid.

Identification of true and false jadeite

Asia is rich in jadeite. Its delicate and beautiful green color and excellent texture are deeply loved by consumers in Southeast Asia, Hong Kong, Macao, Taiwan, Japan and Chinese mainland, and are regarded as the top grade of jewelry. In fact, jadeite also has several variegated colors, such as white, red and black. Green jade is of course genuine. High-quality jadeite is bright turquoise, just like autumn water. Emerald is translucent or opaque, with bright luster, and there are naturally formed irregular color blocks in green, which is called color source. There are tiny particles in it, which are fibrous, flaky or star-shaped and shiny. This is an emerald, many imitations are not available, and it is a sign to judge whether it is true or not. There are many green gems, but emeralds are unique. The whole piece of jade is thick green and has a unique charm.

Jade has a specific gravity of 3.3 and a hardness of 6.5~7. There are two kinds of fake jadeites. One kind is green low-value gems, such as Australian jade, Henan jade, green agate, Dongling stone and so on. The other is glass products. Among the low-value gems, Australian jade is green and yellow, and the whole jade is even in color, colorless and emeraldless. Henan jade green is light gray, with uniform color, no obvious color source and shape, and its specific gravity is 2.65, which is smaller than that of jadeite. The green of Dongling Stone is dark, the color is dotted, and fish scales are shining in the green. Green agate is artificially dyed agate, which is blue in green, uniform in color, emerald-free and delicate in luster, with a specific gravity of 2.65, which is smaller than that of jadeite. Green glass is green and dull, and its hardness is 5.5~6. Glass plates can't be marked, but jadeite can.

Identification of diamond quality

To judge the quality of a diamond, we usually look at its color, weight, cleanliness and whether the cut surface can show bright characteristics. Consider whether a diamond is worth buying. The first condition is that this diamond has not been set. Because the inlaid gems can't accurately identify their grades. Different forms of inlay can make a diamond look brighter or darker than itself; Moreover, the claw marks on the inlay can hide the defects on the diamond. Diamond is the hardest stone in nature, but if the force is not accurate when it is inlaid or disassembled, it will damage the edge of the diamond and affect its value. If the diamond is inlaid at the time of purchase, remember to disassemble the diamond during identification, so as to identify its integrity, texture and value more accurately. Dirty diamonds will turn yellow and dark. Generally, once every six months, the diamond ornaments are put into a special cleaning solution and cleaned on an ultrasonic cleaning machine to keep the luster. The identified diamonds should be at least clean. After disassembly and cleaning, it is necessary to identify the grade and color of the diamond.