MCJ2 Vintage Jewelry on Instagram: "Gold Karats Explained: Color vs. Purity ✨ Gold color comes from the metals mixed with pure gold—such as silver, copper, or palladium. Gold karats measure how much pure gold is in the piece, not its color. Examples: • 18K Gold → Always 75% pure gold, but the color changes based on the alloy mix. • Mixed with more copper → rose gold • Mixed with silver → greenish or lighter yellow tones • Mixed with palladium or nickel → white gold • Even yellow gold can range f