wholesale gemstone jewelry beads How to identify gold and silver

wholesale gemstone jewelry beads

5 thoughts on “wholesale gemstone jewelry beads How to identify gold and silver”

  1. wholesale gemstone jewelry supplies The authenticity gold jewelry identification method

    The authenticity of gold jewelry, in addition to using gold cards, testing gold stones, eating gold tiger and other tools and chemical methods, you can also use the following simple methods:

    . When the real gold jewelry is bent with a softness, it is soft, easy to bend and not easy to break, and apply it with your hands to easily, and there will be traces with harder things. The quality is low, and the quality is harder when the hands are bent.
    . The real gold jewelry is thrown on the table, and the sound of "cracked"; the fake or low -colored throw on the tablet is sharp, and it jumps higher than the real gold.
    . The color of the real gold jewelry is golden; the excessive red is imitation gold, and the light -colored mixed alloy is silver and aluminum.
    . The real gold jewelry can be durable with fire to the durability; the fake refractory resistance will become black -purple, and it looks unsightly.

    The method should be comprehensively used to argue.

    The purchase of 18K gold jewelry is to prevent it from

    . At present, 18K gold jewelry is low in price, many varieties, bright gloss, high hardness, easy for gemstones, etc. The favor of consumers. However, the recent 18K gold jewelry marked with "JP" or "JF" has emerged in the market, but many consumers have shouted.

    The original, according to the relevant regulations of the national gold jewelry, "JP" indicates that it is gold -plated jewelry, and "JF" means imitation gold jewelry. "18kjp" is 18K gold plating, and "18KJF" is 18K imitation gold. At present, some merchants who operate 18K gold jewelry are the weakness of the general public that they do not understand this common sense. The price of gold -plated or imitation gold jewelry is the same as the price of gold jewelry with 18K. When customers buy, they do not explain to the customer to make customers mistakenly think that the jewelry marked with "18KJP" or "18KJF" is 18K gold jewelry.

    Therefore, I hope that when buying such accessories, consumers should ask more, learn more, observe more, compare, and beware of being deceived. Try to buy from the reputable Mingdian and large shops.

    Knowing 4C to buy diamond Diamond confidence

    carat weight (caat)
    Calculated in carat (also known as card). 1 carat = 200 mg = 0.2 grams. One carat is divided into one hundred copies, each called one point. 0.75 carats are also called 75 points, and 0.02 carats are 2 points. In the case of similar conditions, as the weight of the diamond increases, its value increases geometrically; diamonds with the same weight will be far from the difference in color, clarity, and cutting. In each different size and shape, you can find good quality diamonds. The most important thing is to find a diamond that is suitable and style to make you like.

    Clarity
    crystal clear and pure and difficult to find

    diamond crystals in the mantle magma deep in the earth, complicated environment, diverse composition, extremely temperature and pressure High, after hundreds of millions of years of geological changes, it inevitably contains various debris or flaws. The color, how much, size, and position distribution of these inside contains the effects of different degrees on diamond clarity.

    The general use of 10 times large mirror on the inside of the diamond, surface flaw, and its degree of impact on gloriousness. P1, P2, P3 have a total of 10 levels. Diamonds have been divided into excellent, good, good, better, generally 5 levels.

    color (colout)
    The colorless elegance and brilliant

    diamonds have many natural colors, which are precious colorless (after cut white), rare ones, rare ones Speaking blue, pink to the common slightly yellow. The more transparent, the more white light can penetrate, and the more colorful after refraction and color.

    The diamond color grading is the classified environment of a professional laboratory. The technicians will be determined repeatedly to compare the tiered diamond to the standard color than the color stone.

    The whitening diamonds are graded to D (that is, start with Diamond's first letter). The color of diamonds is divided into 11 levels, in turn: D, E, F, G, H, I, J, K, L, M, N.

    The cut (CUT)
    This carving light

    The brilliant glory of the diamond is attributed to its unique high refractive index and high -color scattered performance. However, without cutting diamonds, the appearance is only flat. Only by accurate calculation, careful design and perfect cutting and grinding, the light is fully reflecting the top surface to make the beautiful diamond light. Diamonds are the hardest substances. They are not destructive, never worn, and they are glory and eternal.

    The method of judging the advantages and disadvantages of cutting work: pick up the diamonds, stare at the light of the top surface, the exquisite diamonds of the car worker are glorious and dazzling, and the Hua Cai is not as good as the inlaid or style. is not it? You can do it. The level of the car is divided into: good, good, general.

    It how to buy true emerald

    , you should first learn the basic knowledge about jadeite; second, choose the old -fashioned reputation shop to buy emerald; third, the goods Compared with three; fourth, ask whether it is A or B. Fifth, the store asked the shop to obtain an appraisal certificate, especially the certificates issued by authoritative departments such as the Guangdong Provincial Technical Supervision Bureau. The above 5 points are done. You can buy positive goods even if you can't buy cheap goods to avoid economic and mental losses.

    "South Africa Diamond" is produced in South Africa?

    The diamond mines in 27 countries in the world, most of which are located in South Africa, former Soviet Union, Australia and Canada. my country has also found a small amount of diamond mine in the area of ​​Wafangdian, Liaoning, Mengyang, Shandong, and Hunan. In Africa, Angola, Botswana, Zair, Tanzania, and Guinea are all important diamond -producing places. South Africa is the earliest country in the world to discover large -scale diamonds. Many famous large diamonds and high -quality diamonds are produced. Since this country, "South African Diamond" is very famous. Based on commercial factors, the recent diamond production of various countries has not been announced. The generally recognized five major diamond countries are Australia, South Africa, the original Soviet Union, Zair, Botswana, and the output ranking is: Australia, Botswana, and the original Soviet Union South Africa.

    The minimum cutting (processing) center is not with diamond production. The world's main diamond cutting centers are Belgium, Israel's Antwerp, New York, India, and the cutting center is far from mining. This is the case of diamond processing and sales. The British company DE Beers controls more than 80 % of the diamond ore in the world. Further sales, so the market supply and price of diamonds are monopolized, which has increased its prices every year. Diamonds in the same place have not changed their material chemistry. Each mining area has different diamonds with different quality. The graded evaluation of diamonds is performed according to the 4C standard. It is almost impossible for this aspect to be an appraisal agency. It is precisely that the normal identification certificate in the country does not indicate the place of origin. We often see that the country's most authoritative GIA appraisal certificate is not produced. It does not issue the name of the origin. It is based on the above factors. The national standards were implemented on May 1, 1997 that the national standards were clearly stipulated that "the place of origin is not involved in the name" and specifically pointed out that diamonds cannot be called "South African diamonds".

    Why do "South African diamonds" often appear? On the one hand, because of the earliest discovery of Diamonds in South Africa, many famous diamonds produced in South Africa. This is a traditional title. Secondly, in the 1970s, the Soviet Union produced commercial value diamond imitation products "synthetic cubic oxidation" (commonly known as "Soviet diamond", the appearance is close to the diamond), in order to distinguish it, people call natural diamonds as "South Africa diamonds". In addition, due to Hong Kong, the jewelry store in Hong Kong calls diamonds as "South African Diamonds". Act, it is not rigorous and irregular, and is not allowed in the Mainland.

    r r

    The real jade ware is gentle and shiny. Fake jade wares have no aura, the color is dry, dark and rigid, and there are bubbles in some inside.

    The real jade ware is placed in his hand, the hand feels heavy, and the fake is lighter. The true jade is harder, with a knife without traces, the fake is soft, and the knife cuts the traces.

    This the appraisal with threads, and tap gently. The fake and beautiful sound is emitted (this method is suitable for slightly thin jade pendants).

    The facial fault of true jade is uneven, and the material structure is dense. The fake fuse is neat and brighter, which is glass things; the material structure of the fracture is rough, and the waxless luster is a stone type. It is observed in detail with a magnifying glass of more than seven times to identify its edges, horns, holes, hollow, and carved lines. Local, the clues of fakes can be found in the subtle place. Gold (AU)
    Gold is a distinguished metal. It has a long luster and its texture is soft and can be refined into various shapes.
    .6.1 Physical properties:
    6.1 Density:
    6.1 Appearance: Golden
    6.1 melting point:
    6. 1 Hardness:
    .6.1 Digitalability: Extreme

    19.3 grams per cubic centimeter 1064 degrees Celsius 2.5 Moh (Similar nails) --- (1 gram of gold can be available Lashencheng's 1 km long filament is the first choice for jewelry)
    .6.1 Chemical properties: No oxidation at room temperature, not melting in acid (dissolved in the king water) hg) G999 or thousands of gold) Gold content is not less than 999 ‰
    6.1 African -afraid of mercury (tribute
    common gold category on the market
    6.1 thousands of gold (imprint:
    6.1 foot gold
    .1 18K
    6.1 Modern mark generally uses Chinese
    platinum
    6.1 physical properties: density:
    6.1 hardness : Moh
    . 1 Chemical nature: stable nature, insoluble in any acid
    common platinum category on the market
    . PT990
    6.1 k platinum With platinum: Platinum's full English name Karat White Gold, Chinese literal translation "White Gold" is based on gold as the main ingredient. In addition, it is made of silver, copper and a small amount of nickel and zinc. The chemical composition is completely different. It cannot be simply considered to be a 75%platinum in K platinum.
    k
    6.1 18K gold and 18K platinum: 75%gold, but due to other 25%metal metal The proportion of ingredients is different. The appearance of the two is different. K gold is a slightly lighter and golden yellow k white gold. Gold and gold -plated gold are alloy jewelry containing 75%gold, while 18K packets and gold plating are just wrapped or electroplated 18K gold on the surface of jewelry made of copper or other metals. 18kgp ". Bags and gold -plated jewelry will be a completely different color for a short period of time, which is essentially different from 18K gold. S990, S925, S800. The content is not less than 990 ‰. The silver content of S925 jewelry is not less than 925 ‰. The silver content of S800 jewelry is not less than 800 ‰. AG, a silver -white precious metal, has a low hardness. The common silver jewelry in the market is
    6.1 The materials and content marks of silver jewelry, such as
    6.1 Our silver jewelry school "Gina" "Magu" is the

    inlaid jewelry
    6.1 The diamond after cutting and polishing is sent to the jewelry manufacturer. , Polish and cast, then inlaid with skilled workers, the brilliance of the diamond, Beauty is fully displayed. There are four common inlaid methods:
    6.1 claw inlaid method: This is the most common inlay method, mainly consisting of several metal columns, opening a "7" shape above the metal claws The gap, the waist tribe of the diamond in the gap, and then pressed the claws with a pliers to fix the diamond
    6.1 slot inlaid method: Use the metal wall of the pit on both sides to place the diamond in the pit in the pit , Then apply pressure to fix the diamond.
    .6.1 Bringing edge inlaid method: first make a cylindrical inlaid, put on the car pit on the wall of the inner cylinder, place the appropriate size diamond in it, and then press the metal edge on the diamond waist. On the facial surface of the edge, the diamond can be fixed.
    .6.1 nail inlaid method: open a small hole on a metal piece, and then use the diamond seat in a fixed position. Little nail, covered with diamonds, inlaid diamonds.
    925 sterling silver. The diamond inlaid method S925 indicates that its silver content is not less than 925 % 21.45 grams per cubic centimeter, and the metal is the highest. Silver white, melting point: 1769 degrees Celsius 4.3 (harder than gold), good ductility (foot platinum) its platinum content is not less than 990 ‰; PT950 jewelry has a platinum content of not less than 950 ‰; PT900 jewelry has a platinum content of not less than 900 ‰; PT850 jewelry's platinum content is not less than 850 ‰; of which PT950 is currently used as long -term gold (mark: G750, AU750 or 18K) gold content is not less than 750 ‰ /foot yellow (mark: G990 or foot gold) gold content No less than 990 ‰
    I wish you good luck

  2. miyuki jewelry wholesale 1: Look at it with your hands, because the gold is very soft. If it can be folded, it must be pure gold!
    2: Burning with fire, the so -called real gold is not afraid of fire. If it is burned without changing color, it must be gold
    of course, this can only show that it is gold. People can measure it with a dedicated instrument!

  3. aromatherapy jewelry wholesale australia Pay content for time limit to check for freenAnswer Hello, 1. Check hardness: The higher the color of the silverware, the softer the quality, the more white and light the surface. Take the silverware of about 60 grams as an example. If you open it with your hand, there is no elasticity, and its color is about 95%; if it is a bit elastic, the color is about 80%-90%; %the following. :2, look at the stubble mouth: cut or fold the silverware to see the color of the stubble mouth. If the jewelry is soft, the stubble mouth is thick and soft, with a slight redness, the color is about 95%; if the hands are bent hard, the stubble mouth is white and gray, or slightly reddish, the color is about 90%; Larger, the stubble mouth is light red, yellow and white, or gray, with a color of about 80%; if the bend is hard, the stubble mouth is red, yellow, yellow, etc., and the color is about 70%; Or yellow in the yellow, the color is 60%.试3, Silver Medicine Experiment: Silverware grinds the silverware on the Test stone (the same as the golden test gold), and use silver medicine (silver medicine is mixed with silver powder and mercury into software shape). If the color is high, the color of the silver medicine is low. 4, bending method: pinch with your fingers, the high -colored silver decoration is soft and flexible, easy to be bent and not easy to break; The bending or knocking with a hammer will crack; the fake will not be able to withstand the bend, which is easy to break. :5, throwing method: high -colored silver jewelry heavy, throwing on the tables and bouncing is not high, there is a sound of "hits"; fake or low -colored ones are light, throwing high on the tablet The sound is relatively crisp. 6, acid identification method: silver will change color and even dissolve. Use a glass rod to drop nitric acid or concentrated hydrochloric acid at the mouth of the silver jewelry, and the high -colored brown rice (white moss -like silver chloride sediment), hidden green or slightly green; the low color is dark green and even black.nQuestionnnIs it really or fakenAnswer Hello, it's truen7 morenBleak

  4. wholesale dichroic jewelry 00:00 / 01: 0370% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description

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