I think jewelry of this age should look good as long as it looks good. Now all kinds of artificial things are very good, and you can not pursue nature without artificial optimization. And most of the accessories, no matter how much they cost, are suitable for a period of time. Even if it reaches the collection level, it is rarely worn and needs maintenance every once in a while.
Moreover, some gold ornaments are saved when the price of gold is right, and many people still hold a large number of gold ornaments as they grow older.
I am in my twenties and still young. I definitely like brighter colors, but at present, the brighter colors of natural stones will be more expensive. Common high-grade tourmaline series, garnet series, moonstone series, followed by red and sapphire. There are too many kinds of chalcedony, agate, crystal and ornaments. The important point is that if you don't understand this kind of products, you need to see more and buy less. Be careful. There are too many fake and shoddy products, and there is a big difference between watching pictures and videos and the real thing.
If you mean style and style, you can't say it. There is no research in this field. Let's follow your own preferences. The following is the network diagram. Don't be attracted by the pictures on the Internet. Try to see more real things. And these things are greatly influenced by lighting and light. Just look at the lights selling jewelry in the mall, and some of them use colored lights.