T广金期货 配资oday, I'm very lucky to collect a rin广金期货 配资g. This ring has been in the hands of collectors for many years. It's an old ring. In particular, the ring face is inlaid with a larger opal, which shows the noble and rare collection. It's not only an antique ring, but also of great jewelry value!
Cat's eye (cat's eye), namely "cat's eye", "cat's eye", "cat's eye". Cat's eye stone, also known as oriental cat's eye, is a rare and precious variety of jewelry. Because the opal shows the same light phenomenon as the cat's eyes, it is flexible and bright, and can change with the intensity of light, so it is named. This optical effect is called the "cat's eye effect".
Because of the parallel distribution of "tubular" inclusions in the crystal, this kind of gem can produce a concentrated reflection on the light after being processed into an arc shaped gem, and a light band like the cat's eye "pupil" will appear. Under the light of the concentrated flashlight, the rotating cat's eye gem will open and close, just like the cat's eye, "cat's eye" also gets its name.
This ring is made of copper and silver gilt. It's a male ring. The whole ring is rough and generous. The exquisite inlay technology and the sense of treasure on the surface of the ring shine brightly under the light. It is considered from the factors of color, eyeliner, shape and weight of gem. This high-quality cat's eye jewel has a narrow and narrow eye line and a clear boundary. The eyes should be flexible and bright; the color of cat's eyes should be in sharp contrast to the background; and the cat's eyeliner is located in the center of the arc. When purchasing, we should distinguish the opal from other gem Opal and artificial opal according to the identification characteristics, and buy the real opal.
Like other gemstones, the larger the opal, the more difficult it is. Therefore, the weight is still one of the basic elements to evaluate opal. But the most important factors affecting the cat's eye are color, eyeliner and evenness.
The best color of opal is very strong light yellow green, brown yellow and honey yellow, followed by green, and then slightly dark brown. Very white yellow and very white green, the value is lower. The worst are Heather and gray.
The best cat's eye liner should be narrow, clear and bright, and should be located in the center of the gemstone. About the color of the liner, some people love silver white forehead, while others prefer golden color, while the green and blue and white lines are more neglected. Body color is opaque gray, often with blue or blue gray eyeliner. However, whatever color, what is important is that the eyeliner must be contrasted with the background and appear smooth and clean. Eyes should be big, the bigger the better, and they should be sharp when closed.
The processing technology (especially the degree of symmetry) is also an important factor to evaluate the opal. This ring is in order to make full use of the original stone, keep the appropriate thickness, and grind into a small arc. Keep the angle low so that the gem can be set firmly on the bracket.