Four letters that change everything: Cut, Color, Clarity, Carat. The 4 Cs. Developed by the Gemological Institute of America (GIA), right where I completed my training, with a single goal: to make diamonds comparable. Uniform standards for a market that was previously opaque and too often depended on the seller's personal discretion.
I will explain what lies behind each C and what you should really pay attention to when buying.
Cut: The most important of the four
Cut is not the shape of the stone. Round, oval, pear, emerald. That is the shape. Cut refers to the quality of the cut, and that is crucial for how a diamond refracts light.
A stone with perfect values in color and clarity but a poor cut will appear dull. A stone with mediocre values but an excellent cut will sparkle. When I select a stone, I always start with the cut. The rest follows.
Rating scale: Excellent, Very Good, Good, Fair, Poor. I recommend: nothing below Very Good.
Color: Less is more
For white diamonds, a simple rule applies: the less inherent color, the better. The GIA scale starts at D, completely colorless, and ends at Z, visibly yellowish. The difference between D and G is barely perceptible to the naked eye when worn. The price difference in the natural stone market, however, is significant.
At ANNARELLE, we exclusively carry stones of color grades D, E, and F. This means absolutely top quality, which is almost priceless for natural diamonds. No compromises.
Clarity: Purity you can see.
Every diamond has inclusions. Small imperfections that occur during growth. Most are not visible to the naked eye.
The scale ranges from FL (Flawless) to I3 (Included). A stone with a VS1 or VS2 rating has inclusions that are difficult to see even under ten-times magnification. To the eye when worn: invisible. I do not buy any stone below VS. At ANNARELLE, all stones are VS or better. No visible inclusions. Neither to the naked eye nor under magnification.
Carat: Weight, not size
Carat is a unit of weight. One carat corresponds to 0.2 grams. The size you see depends not only on the weight but also on the shape and cut of the stone.
An oval-cut stone of 0.8 ct can appear larger than a round stone of 1.0 ct. This is not optics; it's geometry. If you want a piece that stands out, you shouldn't just look at the carat weight.
What all this means
The 4 Cs give you guidance. They protect you from bad purchases and help you compare stones. But they do not replace personal advice from someone who really knows what they are doing.
At ANNARELLE, I personally inspect every stone. The certificate alone is not enough for me. What I hold in my hands must feel right.
Pour toujours.
