Traditionally, diamonds have collectible value only if they have more than 50 points (including 50 points), which means they are truly valuable diamonds.
If the score is less than 50 points, it is basically treated as broken drilling. ?
Basically agree with this view, it should be emphasized that you should try to buy something higher than the integer score.
Because the score will change with the passage of time or the error of weighing, for example, don't buy an integer of 50 points, 100 points, such as 5 1,1kloc-0/!
The weight of a diamond is not the main factor that determines its value.
But the weight of a diamond still affects its value. It is important to find out whether the weight of diamonds told by jewelers is accurate.
Therefore, when you buy a diamond, ask your jeweler to measure the weight of the diamond on the spot. If the jeweler doesn't want to do this, go to another store.
Extended data:
Carat (Ct) is the unit of mass (weight) of precious stones, and now 1 carat is equal to 0.2g or 200mg ..
One carat is divided into 100, such as 50 cents, or 0.5 carat, which is used to calculate smaller gems.
Because the density of gems is basically the same, the heavier the gem, the bigger the volume. The bigger the gem, the rarer it is, and the higher the value per carat.
According to the textual research of Huaxuan Jushi, the unit name of Kela originated from Ghana, a West African country in the13rd century, and its capital Accra is the earliest gold and diamond distribution center in the world.
Due to the language communication barriers between countries, trade place names are used as units of measurement.
Carat, also known as Ka and Kara, has been used as an internationally recognized unit of measurement for gemstones since 1907. It is the quality unit of jade beads, diamonds and other precious stones, and the purity ratio of precious metals.
1. (weight unit of diamonds, etc. ) carat (= 200mg)
2. (Purity unit of gold) Kelvin, and the purity percentage is 24 Kelvin. If it is 18 Kelvin, the purity is 18/24=75%.
References:
Diamond ring-Baidu encyclopedia