Ruby should pay attention to its color, size, fire color, cracks and other aspects. The color is the first thing to consider when buying rubies, such as bright red is the best choice, there are many kinds of ruby ​​color, deep pure red is the most pure, followed by microstriped red, deep pink Colors, purple, reddish brown, reddish brown, light pink, etc. are lower value rubies, and the price is much lower. Ruby is observed from the countertop. If other colors are visible during rotation, the ruby ​​is not oriented correctly during processing. It is best to see only one color. "Red and Nine Cracks" is a common saying in jewelry industry. Most rubies contain flaws such as cracks and wraps. Although they do not affect the overall appearance, they should try to select cracks that are thin and small, especially cracks. The ruby ​​in the center of the precious stones.

When it comes to buying ruby, it depends on its fire color. Only the fire color accounts for more than 55% of the crown to achieve high quality. Fire color refers to the color flashed inside the ruby's front surface under the illumination of a light source. When a high-quality ruby ​​lightly rotates, it can be seen that there are many red "little flames" flashing inside. Pay attention to the fact that the table surface responds to itself when the stone is turned. . In fact, fire is essentially a reflection of the combined effects of refractive index, transparency, cut and color of ruby.

The most important thing to buy sapphire is the color. Violet blue and pure bright blue are ideal colors. If the color is too dark or too light, the price will be very low. Kashmir-class sapphire is a dark, opaque, velvet-like color. The gemstone of this color is very good. Among the many colors of sapphire, there is a very precious jewel that is golden yellow, known as the golden jewel, and is known for its golden color. If gold and blue are intertwined, a kind of "gemstone" will be formed, which is very precious.

The second is to look at the degree of transparency. The high-quality sapphire has a very good transparency. Even if it is not very transparent, it can see the bright blue light reflected from the deep inside of the gemstone under the light. High-quality sapphire should not have obvious color bands, but these bands will be present if natural unprocessed sapphire is used. This, of course, can also be used as a basis for the identification of natural sapphire. Unlike rubies, when you buy sapphire, you should look at the gems under a magnifying glass 10 times. There are almost no cracks or other flaws that are high quality sapphires.

When choosing a sapphire ring, pay attention to its cut, and the high-quality sapphire ring will make the jewel shine brightly from the inside to the outside, as if it consists of many small mirrors.

For the average consumer, whether it is the purchase of ruby ​​or sapphire, you must ask the other party to issue an authentication certificate. This is the practice adopted by the international jewellery industry.

Ruby and sapphire do not have any special requirements in terms of maintenance. They should not wear ruby ​​or sapphire jewellery when they are engaged in intense exercise or physical exercise such as fitness or sports activities, so as to avoid falling off of gems caused by bumps, etc.; The gemstone is inlaid firmly, if there is a phenomenon of loose stones, it should be repaired in time; it is best to store the spare jewelry in a classified manner. Because the hardness of various precious stones and precious metals is different, centralized storage may result in unnecessary hardness of precious stones or precious metals. Wear and tear.

Ruby and sapphire are not discolored or become unsightly because of the wearer's skin oils or sweat, but jewelry worn for a period of time does not look as bright as the new ones. This is because precious metals used in jewelry itself are worn. In the case of wear and the like, the surface gloss is weakened, and this requires a simple polishing to restore its glossy appearance. Because of the different inlay styles, there are filth deposits on the jewelry metal bottom during people's wearing. Therefore, frequently worn jewelry needs to be cleaned frequently, and the frequency is determined by the wearer depending on the situation.

Ruby and sapphire jewellery have a lot of inlay styles, which make the wearer look gorgeous and expensive. However, because the stone used for group setting is often small in size and large in number, it will inevitably be insecurate after being inlaid. Therefore, you should try to avoid bumping in everyday wear. Found that loose stone distribution, can not continue to wear, to repair repairs as soon as possible, to prevent large areas loose stone loose.

    Constructed of high-strength, seamless, steel shells, our Viton Hydraulic Accumulator Bladder Accumulators provide a quick response to fluid system demands while combating extreme pressure. Utilized for a wide variety of applications we strive to meet the challenges of your application by providing Bladder Accumulators that cover wide temperature ranges and provide longer service life. Available in a variety of industry standard capacities and pressures, our bladder-type Accumulator excels at absorbing system shocks and pulsations, especially those of high frequency/low modulation.

    If you are interested in my products, I hope you can contact me, I will provide you with more professional products and services 

Viton Hydraulic Accumulator Bladder

Hydraulic Pressure Accumulator,Viton Hydraulic Accumulator Charging,Viton Hydraulic Bladder Accumulator,Viton Hydraulic Accumulator Bladder

Benxi Fengyuan Pressure Vessel Manufacturing Factory , https://www.accumulatechina.com