At present, the mainstream diamond ring material in the world is platinum, followed by 18K gold. Many foreign luxury brands will use 18K gold to make jewelry, because the hardness of au750 is better than platinum and gold.
Au750 diamond ring is actually an alloy, but its performance is superior, so it is more favored by designers. First of all, it has good plasticity and ductility, and can be made into various shapes, thus providing us with more style choices. Secondly, it has many colors, which makes up for the shortcoming that gold is only yellow. Finally, its hardness is relatively high, which can protect diamonds well and keep them unchanged for a long time.