What is the difference between sterling silver necklace 925 and 990 and how is it defined?

Both 990 and 925 represent the purity of silver, with 925 being the minimum purity required for silverware. The 925 silver pioneered by Tiffany & Co. eliminated the disadvantages of silver jewelry such as easy oxidation and low hardness. The silver content of 990 silver is higher than that of 925 silver, which determines its softness and easy oxidation.

Jewelry with different silver content** and the form of a single product suitable for production are also different. Let's start with the definitions of 990 silver and 925 silver to introduce the difference between the two.

What does 990 silver mean:

990 pure silver: the silver content is not less than 990 parts per thousand. Because it is too soft, it is not easy to cast into the desired jewelry shape, and it is easy to wear and oxidize and blacken, and the processing cost is too high, so it is not very suitable for jewelry making.

Foot silver jewelry usually has several signs, one is S99, the other is S990, S is the first letter of the English word silver (silver), representing silver. The content is 999, 995 and 990.

What does 925 silver mean:

925 silver actually refers to silver products with silver content. 925 represents the purity of silver. This is the minimum purity required for silverware, just like the purity of 999**.

Because pure silver is too soft and prone to oxidation, 925 silver has been internationally recognized as the minimum standard for sterling silver since Tiffany pioneered it.

Due to the alloys added, silver has the ideal hardness, brightness and luster, as well as oxidation resistance. And can be inlaid with a variety of gemstones, since then silver jewelry with bright color, unique style, exquisite craftsmanship of the first mid-range fashion taste, quickly swept the world.

Difference Between 990 Silver and 925 Silver.

925 silver is generally called standard silver, marked as "S925" or "AG925", because some other metals are added, so it is not easy to deform, and the brightness is enough, it will not turn black, but it cannot be re-made. It is commonly found in fashionable necklaces, rings, bracelets, studs, etc.

990 silver is generally called sterling silver, marked as "S990" or "AG990", its texture is soft, made of rings, necklaces and the like are easy to deform or break, and it is easy to turn black, the advantage is that it can be re-made if it is broken. It is commonly found in traditional jewelry, bracelets, longevity locks, etc.

990 means that it contains more than 99% silver, 925 refers to more than silver that contains it, in fact, they are all about the same, s is the first letter of "silver" in English (silver), 990

925 represents the content of silver, 99% of silver is relatively pure, but soft, not easy to make the desired shape, in the air is easy to oxidize yellowing or graying, and silver.

The doped alloy is internationally recognized as the best silver content, and the outer electroplating layer of the alloy is difficult to oxidize, which is bright and not easy to oxidize, which is the best standard for making jewelry, and 925 sterling silver actually refers to the silver content of silver. 925 represents the purity of silver. This is the highest purity of silverware, just like the purity of 999**.

Because pure silver is too soft and prone to oxidation, 925 silver has been internationally recognized as sterling silver since Tiffany's company pioneered 925 silver.

99" stands for sterling silver, and although 100% is sterling silver in theory, it is difficult to obtain 100% purity in practice. The color of 99 silver is pale and very soft, and the jewelry made from it is easy to deform, and it cannot be set with precious stones, etc. Therefore, 990 sterling silver is mostly used in bracelets or collars.

The difference is mainly in the content of silver.

990 is called pure silver, the silver content is 99%, 925 silver content is, 990 silver content is high, it is softer than 925, easier to scratch, and it is easier to oxidize and yellow 925 due to its high hardness and strong plasticity, it is more suitable for doing some exquisite shapes, so the styles of 925 silver jewelry are more diverse Young people prefer 925, because the style is fashionable and fashionable to send elders or children, suitable for sending 990 pure silver or 999 thousand silver.

How to distinguish the authenticity of silver jewelry?

1. Look at the imprint: Silver jewelry should generally be marked with the English abbreviation (S or sterling) of silver. The standard silver imprint is S925, or the imprint of . The seal of pure silver is S990.

2. Look at the color: the higher the purity of the silver, the whiter the silver, and the surface of the jewelry looks uniform and shiny, with polish. If it contains lead or copper, the color of the jewelry will be blue-gray or rough.

3. Weight: distinguish from the weight of silver. ** is slightly denser than the usual metal, so silver jewelry is heavier.

4. Check the hardness: also look at the hardness of the jewelry. The hardness of silver is lower than copper, but it is larger than lead and tin, we can use a pin to scratch the surface of the jewelry, if the needle is slippery and it is difficult to leave traces, the jewelry may be copper, if the traces are obvious, it may be lead or tin, if there are less obvious traces, it can be preliminarily judged to be ** jewelry.

We are no strangers to silver jewelry, but many times we hear about 925 sterling silver, 990 sterling silver, what the difference is still not very clear. 925 sterling silver is said to have silver content, and the rest is added to other metals, because the purity is too high, silver jewelry is softer, easy to be oxidized, 925 silver has a certain hardness can be better shaped, to make a variety of silver jewelry. Let's take a look at the specific difference between 925 silver and 990 silver

1. Hardness: 925 silver is harder than 990 silver, and a variety of silver jewelry can be made to meet the needs of different consumers, while 990 silver is very soft, and can only make some relatively simple jewelry and silverware, such as silver bracelets and silver tableware, which are large and do not need to be particularly fine.

2. Color: The color of 990 silver jewelry is whiter than that of 925 silver jewelry, because the higher the purity of silver, the whiter the silver.

3. Logo: The logo of 990 silver jewelry is "S990" and the logo of 925 silver jewelry is "S925". Every time you buy silver jewelry, you can find such a logo, which means that the silver content is different.

4. Uses: 925 silver is mainly used to make silver jewelry; And 990 silver may be more of a lot of craft gifts, silver bricks, silver bars, silverware and other items, such as rings, earrings, necklaces, these 990 silver is obviously not very suitable.

We are no strangers to silver jewelry, but many times we hear about 925 sterling silver, 990 sterling silver, what the difference is still not very clear. 925 sterling silver is said to have silver content, and the rest is added to other metals, because the purity is too high, silver jewelry is softer, easy to be oxidized, 925 silver has a certain hardness can be better shaped, to make a variety of silver jewelry. Let's take a look at the specific difference between 925 silver and 990 silver

Difference Between 925 Silver and 990 Silver.

1. Hardness: 925 silver is harder than 990 silver, and a variety of silver jewelry can be made to meet the needs of different consumers, while 990 silver is very soft, and can only make some relatively simple jewelry and silverware, such as silver bracelets and silver tableware, which are large and do not need to be particularly fine.

2. Color: The color of 990 silver jewelry is whiter than that of 925 silver jewelry, because the higher the purity of silver, the whiter the silver.

3. Logo: The logo of 990 silver jewelry is "S990" and the logo of 925 silver jewelry is "S925". Every time you buy silver jewelry, you can find such a logo, which means that the silver content is different.

4. Uses: 925 silver is mainly used to make silver jewelry; And 990 silver may be more of a lot of craft gifts, silver bricks, silver bars, silverware and other items, such as rings, earrings, necklaces, these 990 silver is obviously not very suitable.

The difference is that the 925 can be rebuilt, the 990 cannot.

990 silver is generally called sterling silver, softer, made of rings, necklaces and the like are easy to deform or break, and are also easy to turn black (of course, the more people wear it, the brighter it is, that is, people say that this person raises silver), the advantage is that it can be re-made if it is broken. Because some other metals are added to 925 silver, it is not easy to deform, and the brightness is enough, and it will not turn black, but it cannot be remade.

Surely the S990 (S999) is more expensive than the S925! The so-called S925, S990 (S999) is the content of silver, the higher the silver content, the softer, S925 is of course harder than S990 (S999), ** is also higher than the lower content is more expensive. Normally, S925 is mostly used to make necklaces, earrings, studs, bracelets and other jewelry, and S990 (S999) is mostly used to make various bracelets, silver kettles, silver bowls, chopsticks, wine jugs and wine glasses and other silverware.

999 has the highest purity, followed by 990, and the lowest purity is 925.

The pure silver in 999 silver jewelry can be called sterling silver, and it is also called thousand-foot silver. The content is the number behind the metal symbol, and 999 is the number**). If you're lucky, the content can be reached, and it's No. 2**.

990 pure silver refers to the silver with a silver content of not less than 990 thousandths.

925 silver generally refers to silver products with about silver content, and the purity is identified as pure silver when it is about right. Because pure silver is soft and susceptible to oxidation, 925 silver is added to other metals to give it the desired hardness.

1. Silver content:

925 sterling silver refers to the pure content of **, and 999 sterling silver refers to the pure content of **.

2. Oxidation:

Because 925 contains less silver than 999, it participates in the oxidation reaction with less silver, and the blackened part is relatively less, so 925 is less susceptible to oxidation than 999 in this regard.

The so-called oxidation means that in a humid environment, there will be a trace amount of water vapor on the surface of the metal, if your metal is impure (such as 925 sterling silver) there is a small amount of other metals in it, it will form a galvanic battery, and the metal will be oxidized and blackened.

3. Hardness:

The silver content of 925 sterling silver is only for, that is, other metals are added, resulting in 925 sterling silver can be made into some fine silver jewelry, because it is harder than 999 sterling silver and has better stability.

999 sterling silver has a higher silver content, so it is softer than other metals themselves, and now most of the bracelets for children are 999 sterling silver, so you can feel the deformation of the bracelet with a little force.

4. Usage:

Due to the addition of alloys, 925 sterling silver has an ideal hardness, brightness and luster, and oxidation resistance, and can be inlaid with various gemstones, so silver jewelry has a bright color, unique style, exquisite craftsmanship and mid-range fashion taste.

999 sterling silver is not very suitable for jewelry production because it is too soft, it is not easy to cast into the desired jewelry shape, and it is easy to wear and oxidize and blacken, and the processing cost is too high, so it is not very suitable for jewelry making, mainly used in industry, but there are also some silver jewelry made of 999 silver.

Encyclopedia - 999 silver.

999 silver is good. 999 sterling silver will be better, and the higher purity is 999, also called thousand-foot silver, and its silver content is in. This long-term wear of 925 is more likely to oxidize and blacken, so you must wear it carefully, and the purity is 990.

With 990 because of the higher silver content, it will be softer, so we are suitable for making some plain silver jewelry, and this also belongs to our common 925, also known as international standard silver, even the international direct identification of sterling silver in the very low standard silver.

Silver jewelry is usually processed with some copper alloy components, so its hardness directly increases, which is very suitable for making some flower-shaped jewelry, and the finished silver jewelry is usually polished by electroplating, so it is stronger than 999 and 990 in oxidation resistance.

Sterling silver necklaces 925 and 990 are both necklaces made of silver, and their differences are:

1. The silver content of S925 silver is 925 parts per thousand silver, and S990 is silver with a silver content of 990 parts per thousand.

2. The standard units of silver for jewelry are sterling silver and copper. And the amount of silver is not less than 990 thousandths of silver.

3. The texture of S925 is harder than S990, which is easier to make jewelry. S990 silver is not very suitable for jewelry making because it is too soft, not easy to cast into the desired jewelry shape, and is easy to wear and oxidize and blacken, and the processing cost is too high.

The common silver jewelry on the market mainly includes: S990 pure silver jewelry, whose silver content is not less than 990 parts per thousand, imprint: silver jewelry, whose silver content is not less than 925 parts per thousand, imprint:

Silver jewelry, the silver content of which is not less than 800 parts per thousand, imprint: S800.