Zhou Dasheng is a little famous, with famous trademarks in China and famous brands in China. Kimberly focuses on secondary cities in many places, but Kimberly mainly makes diamonds, while Zhou Dasheng does everything.
In fact, everything is similar, and these brands are still passable in China. In addition to Cartier and Tiffany, diamonds are still cost-effective.
The price/performance ratio is very simple, that is, it depends on the 4C standard, weight, color, clarity and cut of diamonds. People in the same level of diamond circles give similar prices.
If you care about brands, look at local brands and do better.
I hope I can help you!