4 C's

The world’s standard for measuring a diamond’s beauty



Evaluating a diamond’s color is actually measuring its absence because a perfect diamond has no hue.

Graded on a scale from D (colorless) to Z (light yellow), many color distinctions are so subtle that they are almost invisible to an untrained eye, but they can make a big difference in quality and price.

At Betroth we only offer hand selected colorless and near colorless diamonds in the D to I range.



Diamonds result from carbon subjected to tremendous heat. This process can create natural ‘inclusions’ inside the diamond and external characteristics called ‘blemishes’ outside the diamond.

The Diamond Clarity Scale has 6 categories, some of which are divided:

  • FLAWLESS (FL) – No inclusions and no blemishes visible under 10x magnification
  • INTERNALLY FLAWLESS (IF) – No inclusions visible under 10x magnification
  • VERY, VERY SLIGHTLY INCLUDED (VVS1 and VVS2) – Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
  • VERY SLIGHTLY INCLUDED (VS1 and VS2) – Inclusions are observed with effort under 10x magnification, but can be characterized as minor
  • SLIGHTLY INCLUDED (SI1 and SI2) – Inclusions are noticeable under 10x magnification
  • INCLUDED (I1, I2, and I3) – Inclusions are obvious under 10x magnification which may affect transparency and brilliance



Raw diamonds are uncut and do not have the sparkle and fire that make them so attractive. Precise workmanship is needed to bring these precious stones to life.

Proportion, symmetry and polish all contribute to a diamond’s brilliance, and together are measured on a cut scale, from excellent to poor, which gauges how the diamond’s facets interact with light.



A diamond’s carat measurement is describing how much it weighs. A metric “carat” is defined as 200 milligrams. Importantly, price goes up as the carats increase, but a diamond’s value is determined using all of the 4Cs.