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Jewelry marking for platinum??

Started 1316231319.433 in Jewelry Talk | Last reply 1316288393.563 by MarieIG

Ladies who love jewelry...need your help

I found a tennis braclet the other night. It has a PL marking on the claps and is channel setting. I plan on taking it to a jewler tomorrow but figured I would ask on the jewlery board and see if anyone is familiar with this marking.

Is PL platinum?? I read on line that PT is platinum but also some jewlers use PL!!

thanks for any help

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justlookn1316231367.067230 PostsRegistered 7/31/2006Chicago, IL

Also...there is no number marking Just the PL

ennui1316231849.03319957 PostsRegistered 4/17/2007

Platinum marks are very specific and detailed:

  • Jewelry that contains at least 950 parts per thousand of pure platinum may be marked or described as "Platinum"

  • 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
  • "950 Plat" or "950 Pt"

  • Jewelry that contains at least 950 parts per thousand of platinum group metals, with at least 500 parts per thousand of the total pure platinum, may be marked as platinum as long as the numbers of each metal are disclosed. For instance,
  • "600 Pt. 350 Ir." or 600 Plat. 350 Irid." for 600 parts pure platinum and 350 parts iridium
  • "550Pt. 350Pd. 50Ir." or "550Plat. 350Pall. 50Irid." for 550 parts pure platinum, 350 parts palladium and 50 parts iridum

"Enjoy the little things, for one day you may look back and realize they were the big things." ~ Robert Brault

justlookn1316231967.267230 PostsRegistered 7/31/2006Chicago, IL

Thanks Ennui

I saw that on-line also. I'm trying to figure out what PL means:( Can't find anything on that marking

ennui1316232561.2719957 PostsRegistered 4/17/2007
On 9/16/2011 justlookn said:

Thanks Ennui

I saw that on-line also. I'm trying to figure out what PL means:( Can't find anything on that marking

I found an explanation that "PL" stands for "plumb", which is a pre-1981 mark, and there should be a number to go with it:

THE “P” MARKING IN THE JEWELRY.
The markings in gold jewelry sold in the USA should meet the standards of Federal law. The marking “P” is part of that and as you suspect, does not mean platinum. Platinum is marked with “plat” or “pt” in most cases, often followed by a number showing the platinum content.

Before 1981 jewelry manufacturers were allowed to be about ½ carat off compared to the mark they placed in jewelry. What this meant was a ring stamped 14k could actually be 13 ½ k or up to 14 1/2k. Of course, manufacturers were easily able to make jewelry which was 13 ½ k pretty consistently and doing that saved them gold.

In 1976 a law was passed to require jewelry makers to be much closer in gold content to what the karat stamp said. Gold had to be within a very close tolerance of 0.003(three one thousandths) of the karat mark on the jewelry. The law did not go into effect until 1981.

In the meantime, jewelers made efforts to change to the new quality control. There was one problem: How would customers know which ring was 13 ½ karat ( made before the law was effective) and jewelry made to the new standard? Put two rings side by side and both would be marked 14k, for instance. One would be the older 13 ½ karat version and the other would be the actual 14k version! Who could tell the difference? Manufacturers did not want confusion with customers and also wanted to promote jewelry made to the higher standards and looked for a way to distinguish the older jewelry from the newer.

The answer was a mark of a “P”, like in the ring you described or the word “plumb” stamped along side the karat mark. When customers saw the “p” and it was explained what it meant, they knew this jewelry met the new standards for accurate marking of the karat. Have you heard of a plumb bob? This is a heavy piece of metal (generally) shaped like a fat carrot with a point at the bottom. The plumb bob hangs from a string. When the string is held up at the top of a wall with the bob just at the floor, the line made by the string is straight up and down, right on the mark. Carpenters can use the plumb bob to find a straight up and down line for construction work. “Right on the mark” is the idea behind using the word plumb in marking gold after the 1981.

Tara, back then much jewelry on the market was made before all manufacturers converted to the new “plumb” standard and the P or plumb mark was used in new jewelry. A lot of time has passed since 1981 and jewelers have dropped the “P” from the stamping. Today, the 14k mark may be taken to mean just what it says, on the mark and really 14k.

"Enjoy the little things, for one day you may look back and realize they were the big things." ~ Robert Brault

Usamarsha1316259866.991400 PostsRegistered 12/13/2008

So you don't think they are someone's initials? Are you trying to find out who lost it?

esmeraldag­ooch1316261148.67712333 PostsRegistered 1/7/2008Adopt a Rescue Pet, who rescues who?

Tennis bracelets have been around since the 1920's. Is your piece old? I found a brooch/pin from the early 1900's. It was marked 14KP PL. I had it tested. The top filligree portion is Platinum and the pin back is 14k.

Faith is taking the first step even when you can't see the whole staircase.
Martin Luther King Jr.

esmeraldag­ooch1316261275.21712333 PostsRegistered 1/7/2008Adopt a Rescue Pet, who rescues who?

Last edited on 9/17/2011

Faith is taking the first step even when you can't see the whole staircase.
Martin Luther King Jr.

lovestotea­ch1316261500.61715430 PostsRegistered 1/2/2009DFW Metroplex, Tx
On 9/17/2011 esmeraldagooch said:

To show how common it is to find this marking, here is a similar design to mine with the same marks. http://www.ebay.com/itm/LACY-ANTIQUE-PLATINUM-14K-DIAMOND-FILIGREE-BROOCH-NO-RESV-/220854632554?pt=LH_DefaultDomain_0&hash=item336bf6406a

It is very pretty!

http://www.ebay.com/itm/ESTATE-DIAMOND-PLATINUM-and-14K-GOLD-ART-DECO-NECKLACE-/320759775225?pt=LH_DefaultDomain_0&hash=item4aaec5bff9

Last edited on 9/17/2011

Lovestoteach~ ~ ♥ ♥♥

esmeraldag­ooch1316263453.37312333 PostsRegistered 1/7/2008Adopt a Rescue Pet, who rescues who?

To show how common it is to find this marking, here is a similar design to mine with the same marks. http://www.ebay.com/itm/LACY-ANTIQUE-PLATINUM-14K-DIAMOND-FILIGREE-BROOCH-NO-RESV-/220854632554?pt=LH_DefaultDomain_0&hash=item336bf6406a

It is very pretty!

http://www.ebay.com/itm/ESTATE-DIAMOND-PLATINUM-and-14K-GOLD-ART-DECO-NECKLACE-/320759775225?pt=LH_DefaultDomain_0&hash=item4aaec5bff9

Last edited on 9/17/2011

Last edited on 9/17/2011

Faith is taking the first step even when you can't see the whole staircase.
Martin Luther King Jr.

esmeraldag­ooch1316263629.30712333 PostsRegistered 1/7/2008Adopt a Rescue Pet, who rescues who?

Last edited on 9/17/2011

Faith is taking the first step even when you can't see the whole staircase.
Martin Luther King Jr.

justlookn1316268851.83230 PostsRegistered 7/31/2006Chicago, IL

Ennui....WOW thank you soo much for the information you shared. Very interesting

The story behind the tennis braclet I have is this....I found it in a Kohl's parking lot. Walking to my car, I saw what I though was just a simple silver chain braclet. Bend down to pick this up and was suprised when I saw what I thought (and could be) cz's.

Brought it home, put it in some jewelry cleaner. When I took it out, I was amazed at this braclet. The stones are beautiful. There are 53 of them. Braclet including claps is 7 1/2"long. As I was examining it more closely is when I noticed the PL.

My initial thought was "plated". Went on line and some sites indicate PL is a newer marking for platinum. Went back to Kohls to see if anyone asked about a missing braclet. If this was platinum....I feel really bad for whoever lost it. No one was looking for one.

This is a substantial piece of jewlery. By that I mean it is certainly not costume. The weight is heavy and the metal is solid...not flakey or costumey-type. Not to bash costume jewelry...cause I have alot of that :)

I stopped at a Cash for Gold place and she told me it was not platinum but that was after I told her I did not want to sell it, I just wanted to know what the metal was.

Bottom line is...I don't know have a jewler persay...but I want to take this somewhere to see if it has value. If not, I have found myself a beautiful tennis braclet. If it is of some monitary value, I will be more cautious when wearing it.

Thanks Ladies

expatgal1316271308.765614 PostsRegistered 4/22/2005

Just inherited a couple of platinum-looking vintage pieces. Small pin and a very deco-ish ring with sapphire baguettes. I'm pretty sure they are both platinum, probably from late 1800s to early 1900's, but I cannot see a single marking. Anyone know if the platinum markings were standard during those earlier years?

Newnick ame1316278653.42713110 PostsRegistered 12/12/2004
Do you suppose someone wore it to Kohls and lost it?




I didn't come here to argue.- Peg Bracken

esmeraldag­ooch1316282517.51312333 PostsRegistered 1/7/2008Adopt a Rescue Pet, who rescues who?
On 9/17/2011 expatgal said:

Just inherited a couple of platinum-looking vintage pieces. Small pin and a very deco-ish ring with sapphire baguettes. I'm pretty sure they are both platinum, probably from late 1800s to early 1900's, but I cannot see a single marking. Anyone know if the platinum markings were standard during those earlier years?

http://www.langantiques.com/university/index.php/Hallmarks_on_period_jewelry

Faith is taking the first step even when you can't see the whole staircase.
Martin Luther King Jr.

justlookn1316286749.467230 PostsRegistered 7/31/2006Chicago, IL

Vioann,

That would be my guess...that someone wore it and it fell off in the parking lot.

Probably while they were fiddeling with their bags trying to get keys out of their purse

Not sure. It was just laying on the pavement

MarieIG1316288393.543547 PostsRegistered 7/15/2007

Perhaps they will go to Kohl's to see if anyone turned it in? I wouldn't leave it at the store, but if someone calls in with an accurate discription of what they lost, that would be a good way to get it back to the true owner.

MarieIG

Wife; mother of six (one military/ one law enforcement); three cats, and one dog. I enjoy reading about beauty, jewelry, fashion, and wellness.

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