Carat is a gram weight. It is equivalent to 0.20 grams. If a diamond weighed 23 ct it would be equivalent to 4.6 grams.
Diamonds are all carbon. just divide 1200 grams by 12.01 grams per mole carbon.
If you mean gemstones, diamonds are the top ranked gemstones, and are used as investments and adornments.
By artificial, one must assume that you mean not-natural diamonds, but diamonds formed in a laboratory. The difference is money. Natural diamonds are always more expensive than diamonds formed in a laboratory, given that all the elements about the stone are equal: cut, clarity, carat weight and colour. A certified gemologist will always be able to determine the origin of a diamond.
Natural diamonds can be industrial diamonds or gemstone quality diamonds. Gemstone quality diamonds are worth more than industrial diamonds. If by 'industrial', you mean man-made, then a natural diamond will always be more valuable than a man-made diamond of equal carat weight, unless the natural diamond is not of gemstone quality.
Depending on the context -- the sentence or phrase where NR is used -- it may mean 'natural round'.
CT is the abreviation for carats. This weighing unit is used for weighing diamonds and other gemstones.
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Each diamond is valued according to its cut, clarity, carat weight and colour. Five diamonds weighing one carat, collectively weigh one carat.
carats is the standard weighing unit of gemstones and diamonds
Retro diamonds are basically fake diamonds.
A red diamond is probably the rarest colour for a natural diamond. Flawless diamonds are the rarest in clarity, and large diamonds weighing in excess of 20 carats are rare.
The biggest cut diamonds are safely tucked away under royal safekeeping. The Cullinan, a raw stone weighing more than 3,000 carats, is owned by the British Crown.
A charity silver
He swam in the sea of diamonds
Ct stands for carat, the "weight" of the diamonds.
Weighing in at .2 of a gram, the measurement "Carat" is a weight agreed on as a standard throughout the world jewelry community. The "Carat" has a long tradition of describing the weight of diamonds and some other precious stones.
Carats.