The tourmaline homophonic "dispels evil spirits", so tourmaline has the symbols of peace, health, good fortune, wishfulness, etc., so the jewelry made with tourmaline is often given as a gift to friends and relatives, and because of this, the price of tourmaline has been rising, so There are also many fake or fake tourmalines in the market. So today Xiaobian will tell friends about the price and identification method of tourmaline.
Tourmaline's evaluation and value criteria
Tourmaline's evaluation includes color, workmanship, transparency, clarity, artistic connotation, and rarity. Among them, color is especially important.
Among all gemstones, tourmaline is the most abundant, and can be divided into several varieties according to its color and special optical effects: red-pink tourmaline (red tourmaline). Brazil's pink tourmaline is known as "Brazilian ruby", the highest value is commercially known as "double peach red" tourmaline, blue tourmaline (blue tourmaline green grandmother green tourmaline (green tourmaline); two-color tourmaline, inner infrared green Called "watermelon tourmaline."
The quality of the high-quality tourmaline is rose red, purple red, the price is relatively expensive, the price of pink tourmaline is lower. The green tourmaline is topped with bright green, followed by yellow-green. Pure blue and medium blue tourmalines have higher value due to less output.
In addition to color, high-quality tourmaline should be crystal clear, cut rules, symmetrical, polished.
Special optical effects also increase the value of the tourmaline.
Determinants affecting the price of tourmaline
The price of tourmaline can be said to be changing rapidly. Today, this price may be rising tomorrow. Moreover, these natural substances inherently have great natural characteristics and cannot be uniformly discussed. Before we analyze the price of tourmaline, let's take a look at the determinants of the price of tourmaline.
Of course, the more crystal clear and more refined, the more transparent the tourmaline is an important factor affecting the price. Secondly, there are advantages and disadvantages in the color of tourmaline. The tourmaline of rose red, emerald green and red and green (watermelon tourmaline) is the most popular and the price is relatively high.
Tourmaline bracelet is a common kind of tourmaline jewelry, the texture is very good tourmaline bracelet, the price is generally around two thousand, of course, depending on the texture or transparency price will have a big difference, this should also be based on the goods.
Tourmaline identification method
Crystal and tourmaline: mainly observe their color, generally purple is more common in the crystal, the purple of the tourmaline is generally shallow, pink purple and light purple, Uruguay purple has not been seen yet. In contrast, the crystal is not red and green like the tourmaline (except for the rabbit hair crystal), so you can use the difference in color between the two to roughly identify the true and false.
Fluorite and Tourmaline: From the comparison of hardness, the hardness of tourmaline is 7.5 degrees Mohs, and the hardness of fluorite is only about 4 degrees Mohs. Both can be compared by hardness. Another point is that fluorite often uses multi-color materials when posing as a tourmaline, and there is no purple in the tourmaline. Just as the multi-color of fluorite often appears purple, this is also effective in distinguishing between true and false fluorite and tourmaline. means.
Glass and Tourmaline: From the perspective of internal inclusions, there are often small round bubbles in the glass, which is not the case with tourmaline inclusions. There is also a way to pretend to be a tourmaline in glass. That is to use a burst of glass to pretend to be a relatively coarse tourmaline. This type of glass is usually dyed after bursting. Therefore, the color dyes are concentrated in the cracks, and the light transmission is easy to distinguish.
1, color
It is best for rose red, purple, green and pure blue and pretty watermelon, followed by pink and yellow, colorless and black. In the same color, according to the degree of color intensity, it is divided into 4, etc., which are rich, medium, light, and dark!
2, clarity
It is required to have as few internal flaws as possible, and the crystal clear tourmaline is the most expensive. The tourmaline containing many cracks and gas-liquid inclusions is usually used as a jade carving material. Internationally, the purity of tourmaline is divided into 6 levels, which are small noise (VVF), slightly noisy (VF), obvious noise (VL) slightly cotton (VS) and obvious cotton (S) turbid (C).
3. Transparency
Transparency refers to the transparency of tourmaline. The more transparent the glass is, the higher the value is. The international rating is 4; the readable word (SF), the identifiable (SS), the permeable (SL), not Light transmission (NL).
4, work / cut
Workmanship, the inspection of the tourmaline carvings, the bead chain, the appearance of polishing technology. Compared with the tourmaline ring, the main inspection is the cutting of the surface. The cut should be regular, the ratio is symmetrical, and the polishing is good. Otherwise it will affect the value.
5, rarity
Rareness refers to a composite index that comprehensively considers the color, weight, transparency and volume of the tourmaline. The indicator directly affects the market value of a tourmaline.
6, artistic connotation
Mainly refers to the cultural connotation and artistic value of the design of tourmaline jewelry.
Through the above introduction to the evaluation and value standards of tourmaline, the determinants of the price of tourmaline and the identification method of tourmaline, I believe that friends have a general understanding of the price of tourmaline, and have a certain understanding of the method of identification of tourmaline.
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