Carat is the weight unit of diamond, that is, the fraction of diamond. One carat is equal to 100 cent, and carat (ct) and minute (') are the weight units of diamonds.
Common conversion: 1ct=0.2g, 8'=0.08ct, 12'=0. 12ct.
Carat (ct), usually abbreviated as Ct, has been used as an internationally recognized unit of measurement for gemstones since 1907. CT is the quality unit of jade, diamond and other precious stones, and it is the purity ratio of precious metals.
The word "Kela" comes from the Greek word "Kela", which refers to carobseed, a plant widely spread from East Asia to the Middle East. Because its fruit is said to have almost the same weight, and the weight of diamond is the most easily measured feature in 4c, the early carob tree was used as the weight unit of jewelry and precious metals.
One carat is equivalent to the weight of a small horn tree seed.
Extended data
There are four main dimensions of diamond quality standard, namely, weight (carat), clarity, color and cut, which is also commonly known as "4C standard". Under the same conditions as the other three C's, the price of a diamond is directly proportional to the square of its weight, and the greater the weight, the higher its value.
The standard to measure the beauty of diamonds is beauty. The beauty of diamonds depends on the effect of light. The luminous efficacy of diamonds should be identified by three indicators, namely, brilliant brightness (white light), fire color (colored light) and sparkling flash (flicker). The higher the brightness, fire color and flash grade of a diamond, the higher the beauty of the diamond, and the brighter it will be.
Like a prism, various crystal faces of a diamond can decompose white light entering the crystal through refraction, reflection and total reflection into its constituent colors-red, orange, yellow, green, blue, indigo and purple.
Diamonds are appraised by internationally recognized gem experts, and independent opinions are issued by third parties. Determine the price of diamonds based on 4C standard.
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