How to define the price of a diamond: The 4Cs and other key factors

The price of a diamond is determined by several factors, and is often evaluated using the "4Cs" system, which represent the four main characteristics of the diamond: carat, color, clarity and cut. Here is a brief explanation of each of these characteristics and their impact on the diamond price:

1. Carat (Carat): Carats are a measurement of the weight of the diamond. One carat equals 200 milligrams. In general, the higher the carat weight of a diamond, the higher its price. However, it is important to note that the price of a diamond increases non-linearly with carats, meaning that larger diamonds tend to be priced proportionately higher than smaller diamonds.

2. Color (Color): The color of diamonds varies from colorless to a scale of colors with a gradation that goes from the letter D (colorless) to Z (yellow or slightly yellow). Colorless diamonds (grade DF) are the most valuable, while those with a greater presence of color (grade KZ) tend to be less expensive.

3. Clarity: The clarity of a diamond refers to the presence or absence of inclusions (internal imperfections) and surface defects called refractive defects. Diamonds with few or no visible inclusions are considered high clarity and command a higher price. Clarity ratings range from "Flawless" (no internal or external defects) to "Included" (with inclusions visible to the naked eye).

4. Cut (Cut): The cut of a diamond refers to its shape and its ability to reflect light optimally. A well-cut diamond is brighter and more visually appealing. Diamonds are graded based on the quality of their cut, with categories ranging from "Excellent" to "Very Poor." A good cut is essential to maximize the brilliance and value of the diamond.

In addition to the 4Cs, other factors can influence the price of a diamond, such as the shape (round, princess, emerald, etc.), symmetry, shine and particular characteristics, such as fluorescence.

It is important to note that the diamond market is complex, and the price of a diamond can vary greatly based on factors such as supply and demand, provenance, certification (for example, a diamond certified by a renowned laboratory may have a higher price), and market trends.

In summary, the price of a diamond is influenced by a number of factors, and it is important to carefully evaluate all of these characteristics when purchasing a diamond to ensure you get the best value for money.