Gold jewellery is available in a choice of fineness purities, the two most popular of which in the U.K are 9ct and 18ct, but you may also see 14ct. 9ct is characterised as having 9 parts of pure gold out of a total alloy mix of 24, other metals being added to it to make it harder wearing and lower priced than 18ct.
18ct gold tends to be a deeper yellow in colour than 9ct as it has double the amount of gold present in its alloy mix (18 parts of pure gold out of a total alloy mix of 24 parts), but this does not necessarily mean that it is softer than 9ct as the technology used to create the alloy mixes has improved greatly in recent years, making 18ct harder than some of the older alloy mixtures. 18ct gold being the higher fineness of gold is used by the prestigious jewellery designers such as Fope, Marco Bicego and Georg Jensen.
White gold can be found in all purities of gold – 9ct, 14ct or 18ct, and is created by adding other metals to the gold (such as silver and palladium) to change the colour from yellow to a whiter metal colour. A good quality white gold will be a grey tone in colour and then the white gold is plated with another precious metal (rhodium) to make it a bright white colour. This rhodium plating will need to be re-applied periodically as it will wear off over time.
To clean gold jewellery we sell a range of professional cleaning products that will remove the tarnish that can form on the surface of gold after a while. If gold jewellery is heavily tarnished we recommend having it polished by our goldsmith who will restore the gold to its appearance when new.