The 4Cs of A Diamond

A guide to the 4 Cs

The beauty of any diamond is determined by four key elements commonly known as 4Cs Cut , Colour , Clarity and Carat

Round brilliant diamond with callouts labeling carat, cut, color, clarity, and fluorescence. (Diamond quality diagram)
Cut
Diamonds are renowned for their ability to transmit light and sparkle so intensely. diamond’s cut as shape (round, heart, oval, marquise, pear), but cut actually mean how well a diamond’s facets interact with light. Cut is the factor that fuels a diamond’s fire, sparkle and brilliance. An important aspect of the allure of diamonds is the way they sparkle. Precise artistry and workmanship are required to fashion a stone so its proportions, symmetry and polish deliver the magnificent return of light only possible in a diamond. Achieving the best cut for a diamond reflects in the stone’s final beauty and value. Brightness: Internal and external white light reflected from a diamond Fire: The scattering of white light into all the colors of the rainbow Scintillation: The amount of sparkle a diamond produces, and the pattern of light and dark areas caused by reflections within the diamond.
Cushion-cut diamond in a rounded square shape with facets exposed
Comparison of diamond cut quality from Very Shallow to Very Deep; each column shows a round diamond and a corresponding cut rating (Poor, Good, Excellent, Poor, Very Poor).
Clarity
Clarity refers to the presence of imperfections (usually natural) in a diamond. All diamonds contain some degree of imperfection, and are graded using a diamond clarity scale that runs from FL (meaning flawless) to I (meaning easily visible imperfections).
Diamond clarity chart showing grades from FL to I3 with sample circles and category labels (Flawless, Internally Flawless, VVS, VS, SI, and I1–I3).
Colour
The diamond colour has a big impact on its appearance. Due to the many prismatic facets a colourless diamond will have much more “fire” ( will reflect more light ) . If colour is present in the diamond this ability to reflect light will be reduced. The diamond colour scale begins at D (colourless) and ends at Z (light yellow)
Diamond color grading chart for diamonds showing categories from colorless (D–F) to near colorless (G–J) and yellow ranges, including a yellow fancy sample on the right.
Row of diamond icons labeled D–L-M showing color gradings, with a 'COLOR GRADINGS' caption underneath.
Carat

Carat size is the unit of measurement used to indicate the weight of a diamond. Since 1913 carat weight has been measured compared to the metric system with one carat equaling 0.2 grams. One carat weighs 1/5 of a gram and is divided into 100 points, so a diamond weighing 1.0 ct. is referred to as one carat.

Grid of diamonds with carat sizes from 0.02 Ct to 4.00 Ct, showing corresponding diameters (mm).
London, Hyde Park Streetno 21
Choose Shipping medthod is Pickup Store on Cart page!
Choose a store for picking up your order on the Checkout page.

Shopping Cart

No products in the cart.
No products in the cart.