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Sep 7, 2023 · A “D” stamp signifies a colorless diamond, while a “Z” stamp represents a diamond with a light yellow or brown color. The “CL” stamp indicates the diamond’s clarity grade. Similar to the color grade, a letter is used to denote the clarity, ranging from “FL” (flawless) to “I3” (included).
- Metal Stamps
- A Closer Look…
- Karat Plumb
- Platinum
- Carat Weights
- Jeweler’s Stamps
- Manufacturer’S Stamps
- Designer
- Trade Marks
- Confusion
Karat weight can be written a number of different ways. Each manufacturer is different and can use different terminology. Take a look at the chart below and then we’ll talk about them.
To explain the numbers above a little bit better, they are actually percentages of that particular metal that are mixed with other alloys. For example, 14k gold is 58.5% Goldand the rest are alloys mixed in with it (like silver and copper to make it more durable). So .585 means 58.5% or 14k gold. 10k is also written as .417 (41.7% gold). 18k is .75...
When you see KP stamped inside your ring, which is a “P” at the end of the stamp, like: 14kp, that means that the gold is “Plumb” which means it’s verified to be at least that karat weight marked or more. So if it’s 14kp,it’s at least 14kt gold or higher!
Platinum can be written as platinum, plat, 900 or 950. The 900 means that it is 90% pure platinum and 10% alloy. 950 means it is 95% pure platinum and only 5% alloys mixed in (which gives you a higher platinum content).
Carat weights are the next most common stamp inside a ring. Carat weights are pretty self explanatory. If you see a number like 1.01, that would mean that the diamond set in the ring is 1.01 carats (One carat and one point). .50 would mean that a half carat (50 points) is set in the mounting. Sometimes you will see two carat stamps inside the shank...
A common stamp that you’ll see inside rings are jeweler’s stamps so you can tell where you bought the ring from. Like “JBR” inside the shank would stand for J.B. Robinson Jewelers, “Pgda” stands for the Piercing Pagoda, Helzberg Diamonds will stamp “Helzberg Diamonds” right inside their rings. Sometimes these jewelers will abbreviate their store’s ...
Just like the jewelers, often you’ll see the manufacturer stamped inside the band of the ring. For example ArtCarved will stamp their rings “ArtCarved” so they know it’s their ring and it also helps brand their company, product and image. Take Tiffany for example, they stamp their rings “T & CO“. Manufacturer stamps can be very useful if you need t...
There are a lot of great jewelry designer’s out there that put their name right inside their rings. A great designer’s name can carry a lot of weight. A huge designer that most people know would be David Yurman which is stamped © D.Y.
If you buy a trademarked piece of jewelry, I’m certain it will contain a trademark inside the ring. Trademarks are like the LEO diamond or the Hearts Of Fire diamond (HOF). If you buy a special cut of diamond, or a trademarked name, look for the stamp, it’ll be there.
One thing you have to keep in mind, is sometimes the stamp is uneven, blurry, or hard to read. This happens when the stamp is hit at a wrong angle, skids when it’s hit, or doesn’t make full contact when it’s imprinted. Often 14 will look like a P, H, or something else. You could also be reading it upside down. To find out for sure what the letters ...
Jul 17, 2023 · If you see marks stamped inside your ring that read, “CZ,” the ring features a cubic zirconia stone (not a diamond). “LG” will indicate that either the center or accent stones are lab grown. Occasionally, you might find that the center-stone’s gemological grading report number can be inscribed on the inside of the ring as well. If you ...
Jul 27, 2023 · When purchasing jewelry, you may notice different letters and numbers stamped into the metal. The goal of these marks is to ensure quality and authenticity. Some jewelry markings will help you identify things like metal content or country of origin, while others proudly boast a brand name, a trademark, and other hallmarks. Knowing what you […] The post Jewelry Stamps 101: Identifying Diamond ...
Aug 2, 2018 · I’ve written a lot about ring stamps in the past (the marks stamped inside rings). Just about every ring has something inside the shank that identifies that ring. Whether it be the type of metal used, the carat weight of the gemstones and diamonds, a jeweler’s stamp (symbol, logo, trademark), or the manufacturer’s initials or mark.
Jul 8, 2023 · The three main marks are as follows: 1. The Metal Composition, Purity, or Fineness Stamp. Usually referred to as just the purity mark, purity stamp, or hallmark, this is a 3-digit number that indicates the purity of the metal (how much of the metal is actually used in the piece of jewelry).
People also ask
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In rings with several gems, you might see two-carat stamps. Usually, the first number stands for the center jewel, and the second number stands for the total weight of the other stones. These weights are usually stamped as simple numbers, but you might also see ct, CW, or carat after it; you’ll rarely see the stamp “tdw”, which means total diamond weight.
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