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Feb 28, 2008, 7:26pm   #1
cola262's Avatar
Thread Starter
I am still clueless about jewelry stamps, and despite googling I can't seem to find a good list of jewelry stamp meanings. I know things like 925, but I have seen weird ones too.
Here's is a couple of good sites I found:

From that site, I gather:
Metal: Compulsory Mark
9ct gold 375
14ct gold 585
18ct gold 750
22ct gold 916
99% pure gold 990
99.9% pure gold 999
800 grade silver 800
sterling silver 925
Britannia Silver 958 9
9.9% pure silver 999
85% Platinum 850
90% Platinum 900
95% (UK standard) Platinum 950
99.9% pure Platinum 999

Some things off the top of my head:

K, KT Karat, as in gold 14K, 18K
PLAT Platinum
CZ Cubic zirconia
Oct 6, 2010, 3:38pm   #2
Hello! I have a old necklace. I don't know how old it is, found it in a old barn.

It's a long chain on it, very very detailed, with a Celtic cross as jewel. I've looked on it under a digital magnifying glass, and think I've recovered some numbers, but as it is a old necklace some numbers have been hard to recognize. These are the numbers I could recover, although they might not be 100% accurate: 501, 3028, 1302, 2091 and H.L5 (or E).

I've been searching on the internet about these codes, but I've not found anything that can help me. If anyone know, could you please enlighten me about what type of metal my necklace is made of? It's silver colored by the way. Not glossy.
Oct 6, 2010, 4:16pm   #3
ame's Avatar
You should totally post this on pricescope as well, in RockyTalky specifically. Whoever can answer here will but there are many jewelers over there also.
Oct 6, 2010, 5:43pm   #4
Thanks for the tip, i'll post it there aswell :).
Oct 7, 2010, 4:25am   #5
ellielily's Avatar
Thanks for the info! I just got a white gold bracelet which has 750 I just assumed it was bad quality silver lol