1, the unique color of rose gold makes rose gold unique among many metallic colors, which can set off anyone's skin color and make it more conspicuous and soft. The color contrast between ruby and platinum is low, because the bright red of ruby is highly similar to the silvery white of platinum, which leads to the lack of bright color contrast in the overall combination.

2. Rose gold gives people a noble and fashionable feeling, which is highly similar to gold, but softer and more romantic. Ruby and platinum are relatively simple, and it is difficult to match other colors, which limits their variability in jewelry and jewelry design. So rose gold is good.