There are five carats in a gram, and a “point” is 1/100th of a carat. For example, a 50-point diamond is half a carat. As a general rule, larger diamonds are rarer and therefore more valuable. But size does not determine beauty and brilliance.

Two stones of the same carat weight can have very different values. Colour and Clarity are also measurements of rarity, and Cut is extremely important when it comes to beauty.

Note: Image size may vary depending on your browser and computer display and thus, may not reflect actual carat size.

Buying Tips

  • Carat is the most misunderstood of the 4Cs. It actually refers to a diamond’s weight, not the diamond’s size.
  • Consider cut and carat together; a larger carat diamond with a poor cut grade can appear smaller than a smaller diamond with a higher cut grade.
  • To maximize your budget, “Buy Shy,” which means selecting a carat weight slightly below the whole and half-carat marks. For example, instead of a 2.0-carat diamond, consider buying a 1.9-carat weight. This will save a considerable amount of money and the slight size difference will never be noticed.

Take a look at our Diamond Carat Size Chart

This print out illustrates differences in diamond size based on carat weight, and how diamonds of different carat weights and shapes will appear when viewed from the top down. Your diamond may differ from the printout in length/width ratio, table, and depth.

Carat Weight considers two factors:

  1. A Diamond’s Top Diameter
    It is important to measure, in millimeters, the distance across the top (diameter) of the diamond as this is how it is viewed when set into a ring.
  2. A Diamond’s Cut Grade
    A diamond’s cut grade should also be considered. When a diamond is well cut (grades Very Good or higher), the light reflected out of the top making it appear larger.

How do these two Carat Weight factors help when purchasing a diamond?

The diamond’s diameter and cut grade reveal that smaller carat weight diamonds will appear larger with higher cut grades (Very Good and Ideal). On the flip side, a larger carat weight diamond could appear smaller with lower cut grades (Good, Fair and Poor)

More Expert Tips

  • If a large carat weight is important to you, yet you’re working within a strict budget, consider a diamond with a good cut,
    SI1-SI2 clarity, and an I or J color grade.
  • Diamond prices jump at the full- and half-carat weights. Diamonds just below these weights cost significantly less, and, because carat weight is distributed across the entirety of the diamond, small size differences are almost impossible to detect.
  • Keep in mind that the smaller the finger, the larger the diamond will appear. A 1.5-carat diamond solitaire looks much larger on a size 4 finger than a size 8.
  • Not all settings will fit all diamond carats or shapes. If you have already selected a setting, check the diamond specifications of your ring or ask your Claytess JewellersDiamond and Jewelry Consultant (+263 772 668 567) for help. If you need a special jewellery piece created, Claytess Jewellers can accommodate almost any request.

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