Well, to understand that one has to primarily understand a bit about what is white gold. White gold jewellery is quite often confused with Rhodium plated jewels due to the similarity in their finishes. When certain white metals are combined with gold leading to a change in its original appearance from yellow to a whitish hue, this is white gold. White gold in other words is a combination of gold along with white metals like nickel, silver, or palladium. Just like yellow gold, the purity of white gold is also measured in karats. Therefore, the higher the content of gold, the higher is the Karat count.
The properties of white gold depend majorly on the properties of other metals and the proportions in which they have been combined with yellow gold. White gold chains and other jewels are typically made from a gold-palladium-silver alloy or a gold-nickel-copper-zinc alloy. Nickel.
White gold chains are made generally from the non-nickel alloy since nickel sometimes causes allergic reactions and rashes. This is also the reason why white gold with nickel content is looked down upon amongst most jewellers and isn’t acceptable in the majority of countries.