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wholesale jewelry plaza Cra (CT) is the quality (weight) unit of gems, and 1 carat is now equal to 0.2 grams or 200 mg. One carat is divided into 100 points, such as 50 points, which is 0.5 carats, to calculate a small gem. Because the density of diamonds is basically the same, the heavier the diamond is the larger. The bigger the diamond, the higher the value of each carat.
The 1 carat = 200 mg = 0.2 grams. In the old gem book, one carat is about 205.3 mg. If it is converted to the current carat, one carat must multiply 1.0265. Here is just a rough saying that the carat value in the old countries or regions is different.
Diamonds with a weight of less than 1 carat usually use "points" as a measurement unit, 1 carat = 100 points. In the diamond certificate, the weight of the diamond is accurate to the third place after the decimal point.
The electronic balance with an accuracy of 0.00001 carats is called accurate diamond weight. The diamond weight is recorded in the diamond appraisal report and accurately reaches two digits after the decimal point. So a 25 -point diamond weighs 0.25 carats. Diamonds of the same quality, the larger the weight, the more precious.
chicago wholesale jewelry stores Cra (CT), English CARAT, is usually abbreviated as CT, or card, Kara, is a quality unit of gems such as pearl jade and diamonds, and the purity ratio of precious metals. It is the international standard unit of gems. 4C refers to color, clarity, weight, and cut (cut).
The word carat, derived from the carat "keration" in Greek, refers to long -horn bean trees (or rice bean carobseed), which is a plant widely popular from East Asia to the Middle East. Because its fruits are called nearly consistent weight, and the weight of diamonds is the easiest characteristic of 4C, the early long -horn bean trees are used as a heavy unit for jewelry and precious metals. One carat is equal to the weight of a small horn tree.
In 1983, Mr. Tao Zhengzhang, the Chengdu Institute of Geology (now Chengdu University of Technology), conducted a specific study to confirm that Clarge as the seeds of horn trees in the Mediterranean region-rice beans. About 200 mg, it has nothing to do with the weight of some people said that the weight of Abixinia, Bruce Spikes and locust tree beans. It was not standardized until the beginning of the 20th century.
The public carat unit, that is, one carat is equivalent to 200 mg, and has been adopted since 1907. Before that, one carat was equal to 205 mg, which is 0.205 grams.
The carat (CT) is the quality (weight) unit of gems, and 1 carat is currently equal to 0.2 grams or 200 mg. One carat is divided into 100 points, such as 50 points, which is 0.5 carats, to calculate a small gem. Because the density of diamonds is basically the same, the heavier the diamond is the larger. The bigger the diamond, the higher the value of each carat.
The 1 carat = 200 mg = 0.2 grams. In the old gem book, one carat is about 205.3 mg. If it is converted to the current carat, one carat must multiply 1.0265. Here is just a rough saying that the carat value in the old countries or regions is different.
Diamonds with a weight of less than 1 carat usually use "points" as a measurement unit, 1 carat = 100 points. In the diamond certificate, the weight of the diamond is accurate to the third place after the decimal point.