9KT gold contains 37.5% gold and can be a practical choice for buyers prioritising affordability. Whether it is the right choice depends on how much you prioritise gold purity versus design, diamond and budget.

18KT contains more gold, but “better” depends on your priority. If gold purity matters most, 18KT wins. If budget and design flexibility matter more, 9KT can be practical.

A lightweight nose pin can be more comfortable for prolonged daily use, but weight should be considered alongside construction, fit and fastening. The lightest product is not automatically the best product.