MOTHER’S DAY SALE Up to 40% off sidewide at James Allen! Up to 40% off all select jewelry at Blue Nile! Gold has been used for centuries and always had a deep meaning. Gold purity is expressed in karats. Pure gold, or 24K gold, is 100% pure. 10K gold, on the other hand, is only … Continue reading A Comparison of 10K, 14K, 18K and 24K Gold