What is a half point diamond?

Question

There was an ad on TV for a half point diamond. Being as diamonds are measured in karats I would like to know what 1/2 point diamond is.

Answer 1

Everyone else is giving correct info, and to add- a half point diamond would measure approximately 0.75mm in diameter if it is round.

Answer 2

A diamond's value is not judged by its size but by its weight. A diamond's weight is measured in carats, and one carat equals one fifth of a gram, or 200 milligrams. The word comes from the plant carob - in ancient civilisations carob seeds were used to compare weight with diamonds.

Carats can be broken into 100 points, so a 0.5 carat diamond can also be referred to as a 50 point diamond, or half a carat. Carats go from 0.05 to 4 carats. Not all diamonds of the same carat will cost the same - the quality of the other three c's, the cut, clarity and colour, all have to be the same also.

don't forget to choose my answer as "the best".(hehe)

Answer 3

The "half point" tolerance is used in the US to ensure that the carat weight of a diamond must be measured to the thousandth of a carat and can be rounded to the nearest hundredth. So .995 carat diamond can be sold as 1 carat as can be a 1.004 carat diamond.

So what you saw on TV means that these diamonds have been carefully measured and are very close to the size they are being sold at.

Answer 4

100 points equal 1 carat. A 1 /2 point diamond would be 1/200th of a carat or about the size of a grain of sugar I would imagine!

Answer 5

A carat (when measuring gemstones) is a measure of weight. There are 100 points to a carat. A half-point carat is very tiny.
BTW, carat spelled with a C means a gem's weight/size. Karat spelled with a K is used when you talk about how pure an item of gold is.