Because of its comparative rarity, its usefulness and its beauty.
Slaves were black and usually precious and hardworking, valuable.
Most valuable: Diamond Least valuable: Gravel
The wedding ring was valuable. Max broke mum's valuable vase. The delicacy was elegant, but also valuable.
Valuable. You were correct.
There are many different reasons why something is valuable to a person, as well as many different kinds of things which may be considered to be valuable. Something that you use for some important purpose is valuable. Shoes are valuable for most people because if we did not have them, our feet would be injured by sharp objects on the street, and we would also become much less socially respectable, and would not be admitted into restaurants. Cars are valuable because they are an efficient means of transportation. Aside from utility, there is also investment value. You might value something because you know that if you wanted to, you could sell it for some meaningful amount of money. Gold coins are an example of this, or gold bars, jewelry, stocks and bonds, and so forth. Houses are actually valuable for both reasons; utility and re-sale value. Other things are valued as mementos. They help you remember something that you want to remember. A valued photograph, or a letter can be of this type. There are more abstract things that can be valued. People value their marriage, their religion, their nationality, their status in the community, their ability to play chess, etc. All of these things play some kind of role in a person's life. They help you to be the kind of person whom you want to be, and to have the kinds of relationships with other people that you want to have.
Gold is a valuable mineral
If your question is really, "What is the most valuable karat purity of gold?" then the answer is 24 karat, which is 99.99% pure gold, which is the most valuable form of gold in terms of turning gold into money.
Gold is valuable because it is rare, durable, pretty and extremely useful.
Gold
It is more valuable than gold because there is a few amount of gold and more dirt. So it is easy to find dirt than it is to find gold. That is why gold is more valuable than dirt.
Rhodium and platinum are both more valuable than gold.
No it is valuable for being shiny
yellow gold
Gold
Gold!
yes jade is an less valuable mineral than gold
There are several metals more valuable than gold. Platinum is one.