1. Listen: When you tap with your middle finger, the sound of ordinary glassware is dull, while the sound of crystal ware is brittle and metallic. The harder the crystal, the louder the sound.
2. Gloss: Compared with sunlight, the colorful light reflected by high-quality crystal is bright in color, and the transition light is very natural and rich. The color of glass refraction is often incomplete and dull. Compared with natural light, high-quality crystal has high transparency and is crystal white, while ordinary glass or impure crystal will be yellow or mixed with cyan.
3. Pattern: For the' crystal' with the same color, the higher the manual fineness of the pattern, the more detailed and complex the pattern formation in a small area, and the higher the value. When touched by hand, the surface of manual pattern has a rough feeling of pricking hands, while the surface of machine-made pattern is smooth.
4. Usage: Because the hardness of crystal is much higher than that of ordinary glass, it often won't get dirty after long-term use, while glass is easy to be scratched and its surface gets dirty after repeated use for a long time. After the identification is clear, all you have to do is to carefully check whether the whole product is in good condition, whether the appearance is flawed, and whether the surface is smooth and meticulous.
How important is the color of diamonds?
When buying a diamond ring, the color of the diamond is an intuitive aspect of the diamond 4c. Because of its intuition, it is more important. So how important is the color of a diamond when buying a diamond ring?
First of all, let's look at the diamond color grading standard:
Class d: completely colorless. The highest color level is very rare.
Class e: colorless class. Only jewelry experts can find subtle color traces. It belongs to rare diamonds.
Class f: colorless class. Only expert jewelers can detect subtle colors, but they can still be regarded as "colorless". It belongs to high quality diamonds.
G-H grade: close to colorless grade. Compared with higher-grade diamonds, you can see the color, but the price is extremely high.
I-J grade: close to colorless grade. The color is slightly visible. Excellent cost performance.
K-M level: color visual level.
N-Z level: color visual level.
When buying diamonds, color is the most important diamond quality besides cutting. When you see a diamond, the first thing the human eye notices is the cut of the diamond, and then the color. When you consider buying larger diamonds, color is particularly important, because the more light reflected by a large diamond, the easier it is to be noticed. In addition, stepped diamond shapes, such as "cushion" and "radiant", emit less light, which will make them have the function of adding color compared with other diamonds with more facets.
How to choose the most cost-effective diamond ring color?
Generally speaking, I-class and J-class diamonds are slightly visible in color, but they are more cost-effective, especially "round" or "princess square" diamonds. These shapes of diamonds have more facets and can reflect more light, so they can mask the color of the diamond itself.
Both are "colorless" diamonds. What's the difference between D, E and F diamonds?
Comparing the chromatic aberration from D to J, the colored diamond of D is completely colorless and the rarest and most precious. With the naked eye, Grade E and Grade F are also colorless, and only jewelry experts can perceive the color of such diamonds.
Shi Ying crystal is a colorless and transparent large-scale timely crystal mineral. Its main chemical composition is silicon dioxide. The chemical formula is silicon dioxide. Crystal is colorless, purple, yellow, green and smoky. Glass luster. Transparent to translucent. Hardness 7. Sexually fragile. No cleavage. Crystal density: 2.56-2.66g/cm3.
Pay attention to the following points when buying crystals:
1. Basically, natural and clear crystals are high-grade goods, but the price is high and the quantity is small. Beginners should try not to touch it until they have accumulated enough experience. You can buy some crystals with ice cracks, clouds and inclusions, because these crystals are not easy to synthesize artificially.
2. It should be noted that pure and transparent crystals are easy to be artificially synthesized, and the bigger they are, the easier it is to make fakes; If you look at the crystal contents with a high magnification magnifying glass, if there are bubbles, it may also be an artificial crystal.
3. Transparent white crystals, amethyst and topaz are mostly cultivated crystals, especially necklaces engraved with Buddha statues and scriptures. Pay special attention when buying.
4. Hair crystals, all kinds of phantom crystals, crystal columns, crystal flowers, crystal caves, crystal clusters, raw ore and synthetic products are few, so you can buy them with confidence. When buying crystal caves, crystal strings and raw ore, we should still pay attention to whether they have been repaired, especially crystal caves, which often have traces of repair. It is not difficult to see.
5. When buying powder crystal, if the powder crystal color is too bright and uniform, it is very likely to be dyed, and powder crystal dyeing is very common.
When he held it, the crystal felt very cold. If it is synthetic or acrylic or glass, it feels warm when he holds it.
7. If your hand pulse is unobstructed, you'd better use the method of sensing energy directly. Although everything has energy, but the energy of crystal stone ore is more powerful, you can know it in your hand. Note: the price of crystal is not very high either. If it is not natural, it means the price is high. Swarovski is an artificial crystal, not natural.