Private tailors are also acceptable, but you should choose your business carefully. Since the popularity of customization mode, there are more and more businesses called "customizable" in the market, and most of them are self-employed, with mixed quality.

If you want to find a reliable personal tailor, you'd better find someone with a business license, an actual exhibition hall and a certain reputation, and then confirm the after-sales details of the merchant and whether it is equipped with a full certificate.

If you find a reliable merchant, you can save time and effort, but I suggest you learn about diamonds yourself.

Further reading: the formation principle of diamonds

Diamonds are the products of diamond processing. Diamonds are the hardest and simplest gems in the world. It is a cubic natural crystal composed of carbon. Its composition is basically the same as our common coal, pencil lead and sugar. At high temperature and pressure, carbon element crystallizes into graphite, while at high temperature, extremely high pressure and reducing environment, it crystallizes into precious diamonds.