WHAT DO THE MARKS STAMPED INSIDE YOUR RING MEAN?
I must get at least one email a day that asks me about the Stamp Marks inside their ring. Everyone wants to know what they mean?Hopefully this post will answer that question.
The most common Marks or Stamps are used to identify things like:
Metals, Carat Weights, Manufacturer, Trade Marks, Jeweler, or Designer.
The mark that is the most important is the
Metal Stamp, or Karat Weight of the Metal.
If you look inside the shank of your ring (the band on the bottom or side), you'll usually see the Karat Stamp. More than likely it will be shown as 10k, 14k, 18k or Plat. These are the most common Metals and most common Markings. But you'll also run across
Titanium, Stainless Steel,
Tungsten,
Sterling Silver and even Palladium (plus some other obscure Metals, like those used in
Class Rings - Lustrium, Lazon, Celestrium?).
Metal Stamps
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.
Common Metal Marks Stamped Inside Rings
MARK | MEANS |
10k | 10 Karat Gold (Can be White or Yellow Gold) |
14k | 14 Karat Gold (Can be White or Yellow Gold) |
18k | 18 Karat Gold (Can be White or Yellow Gold) |
20k | 20 Karat Gold (Can be White or Yellow Gold) |
24k | 24 Karat Pure Gold (Can be White or Yellow Gold) |
.417 | 10 Karat Gold (Can be White or Yellow Gold) |
.585 | 14 Karat Gold (Can be White or Yellow Gold) |
.750 | 18 Karat Gold (Can be White or Yellow Gold) |
.833 | 20 Karat Gold (Can be White or Yellow Gold) |
.999 | 24 Karat Pure Gold (Can be White or Yellow Gold) |
PLAT | Platinum |
PT | Platinum |
900 or 950 | Platinum |
S.S. | Stainless Steel |
Steel | Stainless Steel |
St. Steel | Stainless Steel |
Silver | Sterling Silver |
S. Silver | Sterling Silver |
Sterling Silver | Sterling Silver |
925 | Sterling Silver |
Titanium | Titanium |
Tungsten | Tungsten |
Pd | Palladium |
KP | Karat Plumb |
CZ | There is a Cubic Zirconia stone in the ring (and not a Diamond) |
G.F. or G.P. | Gold Filled or Gold Plated |
SOL | Solitaire Diamond (usually followed by some Carat Weight) |
6,7,8,9,10 | (A number) Some Jewelers put the ring size in the shank |
|
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% Gold and 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 .750 (75% Gold).
Karat Plumb
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
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
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 which would mean one stands for the big Diamond (usually center
Solitaire), and the other stamp stands for the
total weight of the side stones.
Carat Weights are usually just stamped like ".75", but sometimes you'll also see
ct or
Carat after it, like .75ct. You may even run across one that looks like this: .75tdw, which means
Total Diamond Weight, or the entire diamond weight of all the diamonds in the ring.
Jeweler's Stamps
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 names or even use a logo. Every Jeweler is different and uses different markings.
Manufacturer's Stamps
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 to find out who made a ring so you could contact them for questions, concerns or even ordering!
Designer
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.
Trade Marks
If you buy a Trade Marked piece of Jewelry, I'm certain it will contain a Trade Mark inside the ring. Trade Marks are like the
LEO Diamond or the
Hearts Of Fire Diamond (
HOF).
If you buy a special cut of Diamond, or a Trade Marked name, look for the stamp, it'll be there.
Take a look at some examples of marks and different stamps inside of rings...
Marks Stamped Inside Rings
Let's take a quick look at the images marked 1-7 above...
1)
PLAT .46 - This is an interesting ring because you can clearly see that the ring is Yellow and Not White like Platinum. This is a pretty rare instance, but the PLAT stands for the Platinum (not Plated) Head. The Diamond (46 points - just shy of a 1/2 Carat) is set in a Platinum Head. The rest of the ring is 14k Yellow Gold. If I had shown the other side of the ring, you would have seen another stamp that said 14k.
2)
R.M.I. 14k - R.M.I. is the Manufacturer's Mark and 14k is the 14k Yellow Gold Content.
3)
FA PT 900 © - The FA stands for the Manufacturer or Designer's Initials. The PT means Platinum (as well as the 900) and that the ring is also
Copyright ©
4)
10k - Easy as pie, 10k White Gold.
5)
14k NIIi - 14k White Gold made by a Designer or Company with the initials of NIIi.
6)
585 - 585 Stands for 14kt Gold, White Gold in this instance!
7)
18k 750 - Often you will find both Karat Stamps and their percentage stamps inside of rings. 750 is the same thing as 18k Gold (White Gold).
Marks can also be wrong!
Keep in mind, things can happen. Stamps or Marks can be wrong. The Diamonds could have been swapped out, or the mountings reused. The Jeweler could have forgot to restamp the correct information on the ring. You never know. They could have also grabbed the wrong stamp (literally a metal stamp and a hammer) and struck the wrong info. Plus,
some rings don't even have any stamps. You should know though, that rings sold in the USA should. If it's not stamped, it could be anything.
To be sure of the Gold or Metal Content of any ring you can take it into a local Jeweler and have them do an
Acid Test on the Metal.
I have seen some Silver Plated Jewelry stamped as Sterling Silver...
NOT GOOD! Plated Jewelry should always have
GP,
GF or
PLATED inside the ring. And as always, you should get an
Appraisal with any Jewelry you purchase. Just to be sure.
Markings help us in a lot of ways. They help identify a ring. They help Jewelers identify their product. They brand companies and designers. Plus, it also helps people identify possible problems with
allergies to Gold and Nickel.
So there you go...
What does your ring say?
Article taken from : www.jewelry-secrets.com