What is Cut?

      While nature determined the color and clarity of a natural diamond, Man is responsible for the cut quality which brings it to life.
The planning, proportions, cutting precision and details of finish determine how brilliant, dispersive and scintillating the diamond will be. If the cutting factors under man's control are not optimized, the appearance of the diamond can be adversely affected.



Diamond faceting has changed over time, particularly as lighting has evolved. There are many shapes and cutting styles, each with different visual properties. The most popular diamond in the age of modern electric lighting is the Round Brilliant.




When a ray of light touches the surface, part of it is reflected back. This is external refraction.
1. The rest of the ray penetrates the stone and moves through it. This is known as refraction
2. The part of the ray reflected back to the surface exits, broken into spectral colors in a prism-like effect. This is known as dispersion.
3. All of these elements contribute to the appearance of a diamond.


What is Color?

Most diamonds are used in jewelry vary in shade from completely colorless down to a visible yellow or brown tint. The rarest and most expensive are diamonds in the colorless range graded D,E and F on a scale that descends to Z. Diamonds with more color than Z, or in other shades such as orange, pink, blue, etc. are classified as "Fancy Colored Diamonds" and are graded on the GIA and other laboratories Colored Diamond Report.

To determine the correct color, all submitted diamonds are compared to an internationally accepted master set of stones, the colors of which range from D, or colorless to Z, the most yellow/brown - aside from "fancy" yellow or brown.

GIA and other laboratories assign a color grade for diamonds in the D-Z range with the diamond face down and viewed through the pavilion. This is because size, shape, cut quality and the presence of fluorescence can influence visible face-up color. In fact, lighting, mounting choice and even the clothes one wears has an impact on color, so GIA and other laboratories uses the most neutral environment possible to ensure accurate and consistent results.

Colorless

D E F

Near-Colorless

G H I J

Faint Yellow

K L

Noticeable Color

M N O P Q R

Very Noticeable Color

S T U V W X Y Z

What is Carat Weight?

The weight or size of a diamond is measured in carats (ct.).One carat weighs 1/5 of a gram and is divided into 100 points, so a diamond weighing 1.07carat is referred to as "one carat and seven points."
For Example
0.75 carat = 75 points.
1/2 carat = 50 points.
1/4 carat = 25 points.
With an accuracy of 1/100,000 carat, the GIA and other laboratories scales provide a highly precise diamond weight, down to the hundredth or thousandth of a carat.It is important to note that diamonds of the same weight don't necessarily have the same size appearance. Those cut too shallow or deep may look small for their weight, or suffer in brilliance. As a reference, GIA and other laboratories recommends the following vertical spreads for round brilliant diamonds. When diamonds are mined, large gems are discovered much less frequently than small ones, which make large diamonds much more valuable. Diamond prices rise exponentially with carat weight. So, a 2-carat diamond of a given quality is always worth more than two 1-carat diamonds of the same quality

  • .25 ct.
  • .50 ct.
  • .75 ct.
  • 1 ct.
  • 1.25 ct.
  • 1.50 ct.
  • 2 ct.
  • 3 ct.
  • 4 ct.
  • 5 ct.