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.
10k rgp means 10 karat gold rolled gold plate. In other words, it's gold PLATED.
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.
It is Gold 18 ct
rgp 10 kt means its "rolled gold plated" of the 10 kt variety
18k rgp is "rolled gold plate"
Rolled gold plate
This means that the jewelry is gold plated with 18 karat gold. You can get different kinds of gold in your jewelry.
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
It is not 18kcp. Correct is 18KGP - it is mean 18 karat gold plate.
18k white gold
Hi... when you see P 10k or 10k P on a piece of jewelry, it means that the purity of the gold is guaranteed to be 10k or better. The "P" means PLUMB it is a higher purity of gold making it a better quality. "P" does not mean any kind of plating. Gold plating marks are as follows: GP, RGP, HGE, GF.