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Meaning of markings in rings, etc. Gold (K= karat) (P= Plum) Plum is high quality (purity) when a P is on gold.
(example 18KP)
10K......48%pure 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 than gold plating. Gold filled is bonded to brass or bronze with 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 item will be marked 18K or 14K HGE (Heavy Gold Electroplating) Gold plating is 7 - 100 millionths of an inch thick. Silver: 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. Platinum: Markings are PLAT, or PLATINUM
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Last Modified on November 09, 2008 |