There is much controversy over 14k vs 18k gold. I always suggest 18K; it has a purer gold content, and even though it is softer than 14K, the metal because it is softer, tends to be more malleable and not chip away as easily. Conversely, if you create a ring with tiny or big prongs for gemstones and diamonds. In that case, I always recommend platinum or white gold for bigger prongs because it is harder and won't bend out of shape as easily. 14k gold is more prone to wear and tear than 18-karat gold. Think of it this way, 18k also known as Au 750, has 75% pure gold content. 14K, also known as Au 585, has ~58% pure gold, and 10k has 41% gold content. The rest of the content in those gold mixes is a proprietary blend of base metals that don't have all the beautiful qualities that pure gold has.