We know the important stuff. Whether you buy it here or somewhere else, you need to know what you are buying. It is an investment. Charlie Weight Precious metals are sold by weight. A layer of 14kt gold is put over brass by heat and pressure bonding.
Gold filled has an actual layer of gold, while gold plated merely has a microscopic film.
Gold vermeil by FTC standards has a 100 millionths of an inch layer of 14kt gold over sterling silver. With the introduction of various metals to pure gold, the color can be altered. Here are the most common formulas of how they make yellow, white and rose colored gold. They look great in 14kt or 18kt settings. Obviously, the CZ is much heavier.