This is the premier determining factor in the terms of a diamond. As you might expect, the larger the diamond, the more than expensive it will be.
Carats are units of measuring of weight measurement. They are used to mensurate most cherished stones, because of their ease. A carat bes 200 grams, and do expressing rock weight much easier than using grams. Instead of having to label 3 diamonds with weights of 200 milligrams, 207 mgs and 213 milligrams, the carat supplies classes for diamonds to suit into, placing all of these diamonds in the 1-carat range.
Something to maintain in head is that a higher carat weight makes not always interpret to a bigger looking stone. Even among rocks of the same shape, other factors (especially cut) can greatly act upon the perceived size of a diamond. A cut that gives a diamond a big tabular array (the uppermost level surface of a diamond) will do a little diamond expression bigger. However what you acquire in perceived size, you lose in brilliance.
Oppositely, a diamond that is cut broad at the girdle (a diamonds widest point) will do a big rock expression smaller. There's not much benefit to the overall visual aspect of the diamond with this sort of a cut, unless you are specifically looking to do a big rock look littler (which is a rare case, indeed).
An of import factor in choosing a diamond is the size of the finger that volition be wearing the diamond. For person with thicker, wider fingers, it might do sense to pass other money to acquire a bigger diamond that is cut to maximise its perceived size. A little diamond will look even littler worn on big fingers. The antonym is also true. Person with especially slight fingers can acquire other milage out of a littler diamond.
The current cost dislocation of the carat scale of measurement looks approximately like this: a diamond with a lucidity evaluation of SI1 and colour of Gram at .50 carats will travel up approximately $1,100 per carat when raised to the adjacent carat class (.70 - .89 carats). In the adjacent carat scope (.90 - .99 carats) the terms will travel up an further $800 per carat. In the 1.00 -1.49 carat range, the terms per carat rises by about $800 per carat. Another $1,200 per carat is added in the scope of 1.50 - 1.99 carats.