Diamond Carat Guide

What is Diamond Carat Weight?

A carat is a unit of measurement used to specify the weight a diamond. Carat is just a diamond industry special word for weight of a diamond stone. One carat is equal to 200 milligrams, i.e., a 5-carat stone will weigh 1 gram.

People often mistakenly assume that a diamond's size is synonymous with its weight, though that's not necessarily true. Like a human body the more the weight the more likely the size is bigger, but other factors also affect the size. The way in which the diamond is cut will greatly affect the diameter and brilliance of the diamond. Diamonds with a poorer cut, for example a change of depth or a thick girdle, will maintain their heavy weight but 'hidden' in the base of the diamond with less surface on top so they look smaller.

Given below is an approximate chart of diamond carat weight and round diamond diameter size

Diamond carat weight size chart

Buying Tips

  1. When buying a diamond ring you should choose a carat weight that suits the wearer's fingers. Selecting a smaller carat weight for thicker fingers will not suit the fingers. Selecting a higher carat weight for thinner fingers will make the ring look very prominent. Most would like that but some may not want that.
  2. Do not simply go for higher carat weight to obtain a larger size. Distribute your budget against diamond carat weight as well as other characteristics. A large diamond with poor clarity and colour may not always look great
  3. At Shining Diamonds we give customers the flexibility to select from a range of different carat weights ranging from 0.25ct to 1.00ct. This range of diamond carat weight is most popular, however if required we can do carat weight even higher than 1.00ct. Please contact us for a customised quote