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That's tricky; There's no one answer. Every maker has different stamps. Of course you can start out with "Platinum", there can be "Plat" or even "Plt". 950 can sometimes be in association with platinum; Though it is also, sometimes, used on high-grade silver and such. There's also numerous marks combining PT/PLAT and purity numbers.
What else can I help you with?
What does PT 850 mean on a jewel?
PT 850 indicates that the jewel is made of platinum that is 85% pure, with the remaining 15% typically consisting of other metals for durability. This designation signifies high quality and is commonly used in fine jewelry to denote the purity level of the platinum. The "PT" stands for platinum, while "850" refers to the percentage of pure platinum in the alloy.
What does 850 mean on jewelry?
Platinum is commonly marked with 950 or 850 so check your jewelry: If a piece of jewelry contains at least 950 parts per thousand of pure platinum, it can be marked simply platinum. If an Item have at least 850 parts per thousand of pure platinum, it can be marked with the amount of pure platinum and the word platinum or an abbreviation (i.e.: 850 platinum, 850 Plat or 850 Pt.). Silver is commonly marked with 925 for sterling silver and 999 for pure silver. There are other lesser grade marks for silver but they are uncommon. There are some low grade silver marks out there though. I happen to have a silver belt stamped 800 silver. Some jewelers stamp the percentage of gold rather than the typical 10k, 14k, 18k, 22k, 24k. If the piece is real gold it is easy to convert the percentage to the k that we are used to seeing. The computation is as follows: 24 (for 24K) x 0.417= 10 (for 10k), 24k x 0.583 =14k, a common stamp would be 583 or 585 24k x 0.750 = 18k, a common stamp would be 750 24k x 0.917 = 22k, a common stamp would be 917 or 918 24k x 0.999 = 24k a common stamp would be 999 Rarely do you see a number stamp for 10k since 10k gold is not as common in other countries. Conversly you can also easily calculate the percentage of gold in your jewelry by using the karat: 10k / 24k = 0.417 x 100 = 41.7% gold in 10k, 14k / 24k = 0.583 x 100 = 58.3% gold in 14k 18k / 24k = 0.750 x 100 = 75% gold in 18k 22k / 24k = 0.917 x 100 = 91.7 % gold in 22k 24k / 24k = 1 x 100 = 100% gold in 24k
What is the marking on a ring to say it's platinum?
Platinum jewelry is typically marked with the numbers 950 or PLAT, indicating it is made of at least 95% pure platinum. Additionally, some platinum pieces may have a small hallmark symbol or stamp to indicate the metal's quality and authenticity.
What does Mexico only stamp mean on silver jewelry?
It should be a PL followed by three digits (akin to PL 999). Its meaning is "PlataLey 999" which stands as the amount of pure silver in your jewelry. For example, PL 850 means your jewelry has 85% of pure silver; the rest can be other metals such as zinc, tin or copper.
What is the marking for platinum?
The most commons marks are '850 Plat' or '850 Pt' OR '950 Plat' or '950 Pt'
What is the meaning of the number that is stamped on platinum?
It is the purity of the platinum. 850 is 85% pure. 900 is 90% pure. 950 is 95% pure.
What is the the LCM of 850?
nothing you mean LCF.
Why is platinum so exspensive?
The earliest known use of platinum dates back to 7th Century BC, when it was used to craft caskets in Egypt. Its use for this purpose shows that even the earliest civilizations valued platinum as an important and precious metal. Today, platinum is one of the most demanded metals in the bridal market. It's popularity is beginning to surpass white and yellow gold in engagement rings, and is growing increasingly favoured as the metal for both men's and lady's wedding bands. But what is it about platinum that makes it so popular, and also so expensive? Platinum is very popular because of its many advantages. Unlike white gold, which has to be rhodium plated to achieve its brilliant white shine, platinum is a naturally white metal that will never require re-plating. Platinum is also a little harder wearing than gold, making it less susceptible to, though not completely impervious to, the signs of everyday wear and tear. There are three reasons why platinum jewelry is relatively expensive as compared to gold or white gold jewelry. The metal platinum is a more expensive metal than gold as it's a more rare metal and there are difficulties involved with mining it, which also adds to its price. Platinum is also used in a much higher concentrations in jewelry than the proportion of gold used in jewelry. The platinum alloy used in jewelry consists of 85% to 95% platinum, that's 850 to 950 parts platinum for every thousand parts. Gold jewelry conversely generally uses a maximum of 75% or 750 parts gold per thousand parts for 18ct jewelry, or less gold for 14ct, 10ct or 9ct jewelry. Whilst traditionally platinum was mixed with an alloy of gold, it is now combined with another member of the platinum family such as palladium or iridium which helps to retain its whiteness. Palladium is also more expensive than gold and it has a metal price more comparable with platinum than gold. This change in alloy mix has also contributed to raising the price of platinum. Platinum is also a denser heavier metal than gold, making a ring design made in platinum heavier than the same ring design made in 18ct gold. As the metal price is calculated based on gram weight, this density or heaviness, also contributes to making platinum more expensive than 18ct gold.
What does the letters PL Mexico silver mean on bracelets?
It should be a PL followed by three digits (akin to PL 999). Its meaning is "PlataLey 999" which stands as the amount of pure silver in your jewelry. For example, PL 850 means your jewelry has 85% of pure silver; the rest can be other metals such as zinc, tin or copper.
What is the mean of 1000 900 850 900 1150 and 1350?
The mean is 1025.
What does the hallmark 850 mean?
The hallmark "850" indicates that a piece of metal, typically silver, contains 85% pure silver and 15% other metals, such as copper. This designation is often used in jewelry and silverware to denote a high-quality alloy that is more durable than pure silver, which is 99.9% silver (known as 999). The "850" hallmark is commonly found in various countries, particularly in Europe and Asia, and signifies a specific standard of silver craftsmanship.
What is 854 to nearest ten?
850
