Natural diamonds. Even with ideal transparency and beautiful color, this stone is not very beautiful, but it is brighter than other stones, if it is not carefully pondered by people. There is a term for polishing precious stones and diamonds, which is called "batch work" or "manufacturing work". Gemstones and diamonds will only become diamonds with colorful light after long-term design and patient thinking by experienced craftsmen. The diamond itself is of course a marketing scam. No matter from any angle of rarity, craft value and design sense, it is worthless. All the value comes from the strict control of raw material output for decades and the tireless marketing brainwashing of all mankind. However, many times rationality can't compete with human nature. It is good to know what you are buying. The diamond ring in our hands will become the aluminum crown and aluminum tableware of the royal family in the18th century, and become the talk resource and ubiquitous object of future generations. However, if it can bring you happiness and satisfaction at this moment, buy it. No matter what the cost, it will witness the past time in the future, just like everything around it.