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18k rgp is "rolled gold plate"
RGP stands for rolled gold plated. An 18 RGP mark on jewelry means the jewelry is not a real 18k gold but only gold plated.
This means Rolled Gold Plated
Gold plated stuff usually isn't worth sizing. Get some real gold
Can be pawn
About 1/20th the price of solid 18k.
About 1/20th the price of solid 18k.
18K Gold: 18K Gold is 18/24ths, or three-quarters pure gold. Jewelry of this fineness is marked "18k" or "750," meaning 75 percent gold."
Jewelry engraved with RGP, which stands for Rolled Gold Plating, or plaqué d'or laminé, (proper designation: 1/30 14 kt.), contains approximately 100 times the average amount of gold utilized in gold plating (which is either sprayed or dipped). Rolled Gold Plating involves the lamination of a thin sheet of gold leaf with a lesser metal (usually brass), fused by heating under pressure.
75% of the value of a pure(24K) ounce of gold.
18K Gold: 18K Gold is 18/24ths, or three-quarters pure gold. Jewelry of this fineness is marked "18k" or "750," meaning 75 percent gold."
RGP means Rolled Gold Plated and is a gold lining applied in the jewelry industry to watches, pens and the like. The amount of gold in a RGP product must constitute at a minimum 1/40th of the weight of the whole product. You can then refer to the 10kt gold price calculator link below to find out how much it is worth