define carats in a diamond?

Answer 1

Carats are the traditional measuring unit of a diamond's weight.

Answer 2

What is a Carat?
Historically the carat is supposed to have been derived from the weight of locust bean or carob bean seeds, from the Greek Keraton. Until earlier this century, there were at least two different standards for the carat. In 1914, the carat, or metric carat as it was known, was defined as 1/5th of a gram.
It is not always easy to establish the weight of a mounted diamond, it would need to be removed from its mount, and then reset, which always involves some slight risk, not to mention time and expense.
For round diamonds it is fairly easy to estimate their weight by measuring their diameter and, preferably, their depth. If this is done accurately, the weight can be estimated within a fine tolerance (about 1 or 2 %). If the depth cannot be measured, the weight can still be estimated from the diameter, but with less precision.
For diamonds of other shapes, it is more difficult to estimate the weight, but specialised diamond gauges such as the Leveridge gauge come with a booklet of conversion tables, and instructions (albeit rather unmathematical) for calculating diamond weights.

Answer 3

The carat is a unit of mass used for gems, and equals 200 milligrams or 3.086 grains (avoirdupois). The word derives from the Greek keration (fruit of the carob), via Arabic and Italian. Carob seeds were used as weights on precision scales because of their reputation for having a uniform weight; a 2006 study [1] by Lindsay Turnbull & others found this to not be the case - carob seeds have as much variation in their weights as other seeds.[2] In the distant past, different countries each had their own carat, roughly equivalent to a carob seed.

Eventually, it was linked to the grain in the Troy pound system of measurement. Under this system the standard was about 205 milligrams. Metric countries used this measurement nonetheless in its limited range of application. In 1907 the metric carat of 200 milligrams was adopted, and is now universally used today. A carat can also be further divided into 100 "points" of 2 milligrams each.

For diamonds, a paragon is a diamond weighing 100 carats (20 grams).

The ANSI X.12 EDI standard abbreviation for carat is 'CD'.

Answer 4

A carat is a mass unit for a gem, 1 carat is equal to 200 milligrams.

Answer 5

Meanings of carat or karat:

In the gem business:

Carat (mass) is a unit of mass for gems. It is equal to 0.2 gram.

Carat (purity) or karat is a unit of purity for gold. In the United States, karat almost exclusively means the unit of purity. 24k is pure gold, 18k is 18 parts gold and 6 parts other metals (usually silver or copper), and 14k is 14 parts gold to 10 parts other metals. 10k is the minimum that can be sold as gold in the U.S. [1]

Answer 6

this site has a awesome chart with each diamond cut ( round, pear, emerald, ect)

what they are equal to up to 5 carats.

it is a pdf file so you will need adobe for this, also it is on a chart type background for it is real size, and shows in a visual way the diamond size

Answer 7

A unit of weight equal to 200 milligrams.