Jewelry Markings

Gold (K= karat) (P= Plum) Plum is high quality (purity) when a P is added. (example 18KP)


     12K......50% pure

     14K......58.3% pure

     18K......75% pure

     22K......91.2% pure

     24K......99.9% pure

     Gold Filled Markings (W1/20 14K G.F.) what it means: W=weight,

     1/20 = 5% gold, G.F. = Gold Filled. Gold Filled is 300 times
     thicker than gold plating. Gold filled is bonded to brass or bronze with
    (fusing)  heat & pressure. By law 5% of its total weight must be gold.

     Gold Plating:
     Thin coating of gold over a base metal (Electroplating) A gold plated
     item will be marked 18K or 14K HGE (Heavy Gold Electroplating)
     Gold plating is 7 - 100 millionths of an inch thick.


     Sterling is 92.5% silver, 7.5% copper

     Sterling Markings are .925, STER, STERLING.

     Sterling from England are marked by a Lion Hallmark.

     Silver Filled items are marked 1/20 silver filled.

     Vermeil is sterling silver covered by an electroplating of gold.


     Markings are PLAT, or PLATINUM, and maybe marked .900 or .950

Jewelry Links

The Online Encyclopedia of American Silver Marks
British Silver Hallmarks

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