Why not use 14K instead of 535?

Using 14K gold instead of 535 (or 535 silver, which is an alloy of silver with 53.5% silver content) depends on the desired properties of the final product. 14K gold offers a higher resistance to tarnishing and corrosion, making it more durable and suitable for long-lasting jewelry. However, 535 silver is popular for its affordability and the aesthetic appeal of its bright, shiny finish. Ultimately, the choice depends on budget, desired appearance, and intended use.