Rose gold and platinum refer to 18K gold, but the colors are different. Rose gold consists of 75% gold and 15% rose-causing element, while platinum consists of 75% gold and 15% white-causing element. These two colors will darken or even change color after wearing for a long time and need electroplating. Generally speaking, platinum is easier to electroplate. The design of rose gold jewelry is fashionable and suitable for people with fair skin, while the design requirements of platinum are not so high, so it is better to choose.

However, if you give your girlfriend 3 gold, I suggest you buy platinum (PT950) or gold diamond ornaments. If you want to get married, it would be better to buy her a diamond ring. Will diamonds last forever?

If you choose platinum, you can also buy a couple rings, which is more meaningful.

I hope you can choose satisfactory accessories.