The size of a diamond is expressed in two units, namely "carat" and "minute". 1 carat = 100 carat, and 50 carat is 0.5 carat. Diamonds below 1 carat are basically expressed by "points".

Diamonds over 65,438+0 carats can only be described by "carats" accurate to 1%. For example, a 1.08 carat diamond can only be described as "1.08 carat".

Diamonds are classified according to their actual weight. Put the diamond on a special weighing platform for jewelry with tweezers, and the real weight data of the diamond will be displayed on the display screen.

The weight of a diamond is first measured to one thousandth of a carat (.001) and then rounded to the nearest percentile (.01). If one thousandth of the weight of a gem is 9, it can be rounded to the nearest hundredth.

Diamond refers to polished diamond, which is a natural mineral and the original stone of diamond. Simply put, diamond is a simple crystal composed of carbon element formed under high pressure and high temperature conditions in the deep part of the earth. Diamonds are beautiful and rare. They are symbols of love and loyalty, representing eternal love.

Diamonds have the highest hardness and high brittleness among natural minerals, so they will break when they collide with each other. From the ancient Greek agonist, which means hard and inviolable substance, it is recognized as the king of gems. Diamonds In other words, diamond is actually a kind of carbon crystal with quite high density.

Card, or translated as carat, carat, is the quality unit of diamond. One card is 200mg. According to legend, in the early days, the diamond was weighed by the fruit of carob tree, and one such fruit weighed about 200mg.

Because the density of diamonds is basically the same, the heavier the diamond, the bigger the volume. The bigger the diamond, the rarer it is, and the higher the value of each card.