Molly Brown uses a small amount of 9ct gold in some jewellery collections. 9ct gold tends to be the most resistant to scratching and can be easily cleaned using a soft lint free cloth to maintain shine and lustre. Chlorine can permanently damage gold jewellery and can cause serious damage to gold-plated jewellery and so it is advisable not to wear gold jewellery or gold-plated jewellery in swimming pools. Always store jewellery safely and securely when not being worn.