9 karat (37.5%) 800. 80% pure silver. 850. 85% pure platinum.
925 markings on jewelry are a universal standard used to indicate the purity of silver. The jewelry number 925 is significant because it means that the jewelry piece is made of 92.5% silver and 7.5% other metals. The other metals used can vary, but they are usually copper or nickel.
Jewelry that contains 850, 900 or 950 parts per thousand of pure platinum may be marked "Plat" or "Pt" if a number is used in front of the term to disclose the amount of pure platinum in the mix, such as : "850 Plat" or "850 Pt", or.
The three numbers represent the percentage purity. For example, the marking '417' means 41.7% gold, which is 10 karats. Using this same format, 14 karat pieces are marked '583' (sometimes '585') and 18 karat pieces are marked '750,' and so on.
The 825 number on jewelry tells us that this gold jewelry is made of real and pure gold, and by looking at 825 number, we can also ascertain the purity of gold. 825 means 82.5 % Pure gold is present in it and it is 19 carats Gold.
875 gold is a gold alloy of 87.5%, and more commonly referred to as 21 carat gold.
The Scandinavian silver alloy contains 83% pure silver and 17% copper or other metals. German silver will be marked with a millesimal fineness of 800 or 835 (80% or 83.5% pure silver).
This is the most common marking on any ornament. This means that your ornament is 75 percent gold and it is also marked as 750 at times. This is the most common level of purity that is available.
'Caratage' is the measurement of purity of gold alloyed with other metals. 24 carat is pure gold with no other metals. Lower caratages contain less gold; 18 carat gold contains 75 per cent gold and 25 per cent other metals, often copper or silver.
“Fineness” defines gold content in parts per thousand. For example, a gold nugget containing 885 parts of pure gold and 115 parts of other metals, such as silver and copper, would be considered 885-fine. “Karat” indicates the proportion of solid gold in an alloy based on a total of 24 parts.
Platinum Purity & Quality Marks
Jewelry marked only “Platinum”, “Pt” or “Plat” contains at least 95-percent pure platinum. Platinum content can also be marked by 999 for 99.9% pure platinum, 950 for 95% and so on.
Platinum jewelry should be stamped “PT” for pure platinum or “PT900” or “PT950,” indicating the number of parts per thousand that are pure platinum.
Is sterling silver better than 925? When 92.5% of pure silver is mixed with 7.5% of other metals (often copper, nickel or zinc), the resulting alloy is called sterling silver. So, to wrap up, there is no difference between the terms sterling silver and 925 silver.
The term “vintage” has a broad definition in fashion and jewelry. In general, items must be at least 20 years old to be considered vintage. Because jewelry eras tend to last longer and evolve more slowly than other fashion, décor, and style, however, most vintage pieces tend to be at least 50 years old.
925 on gold jewelry means that the base metal is an alloy with 92.5% silver and 7.5% other metals, covered with gold plating.
250 Rhod. 75% pure platinum, 25% rhodium. 600 Pt.
The 750 stands for 18k solid gold and the six-digit number is the unique serial code to that ring. However, there are other marks on this ring, the “52” is the EU ring size of the Nigeria ring.
47 - 49: XSMALL (can be a top-ring/or for the pinky for those with bigger hands) 50 - 52: SMALL (Little medium) 52 - 54: MEDIUM. 56 - 58: LARGE. 60 - 62: XLARGE.
Gold-plated pieces may be marked 'GP,' 'GE,' or 'HGE. ' 'GP' or 'GE' means the piece is electroplated with a thin layer of gold; '18K GP' would indicate a piece plated with 18 karat gold.
Because pure gold is denser than other metals, a gold item will sink quickly and directly to the bottom of a tub or bottle of water. Fake gold can float or fall more slowly. Real gold also won't rust or tarnish when exposed to water, while gold plated items can show discoloration.
The most common zolotnick standard is 84, a number which is often stamped on Russian silver and signifies a purity level of 87.5 percent.
It's a stamp signifying that the piece of jewelry is made with European silver, or 835. American silver is 995. What this means is that this piece of jewelry is comprised of 83.5% silver, and 16.5% other metal such as copper, tin, etc.
'875' gold is just one of many different types of hallmarks. If a gold product bears the hallmark '875', then your gold has been tested and classed as 21 carat or 87.5 per cent pure. The remaining 12.5 per cent of the item is composed of different metals such as nickel, copper, or in some cases silver.