
Deil Isac & Co. guides you from the selection of the gemstone to the creation of the finished piece of jewelry.
Our Story
The Deil family business, now in its third generation, was founded in 1954 by Ismail Deil. Thanks to his expertise and business integrity, he quickly made a name for himself in the diamond trade.
Scopri >Our Atelier
Jewelry handcrafted by our expert artisans to bring out the brilliance of the stunning gems in our collection and tailor each piece to fulfill your every jewelry wish.
Scopri >Carat, Clarity, Color, Cut

Scopri >
How does diamond grading work? Diamond grading is based on the international “4C” system (Carat, Color, Clarity, Cut), defined primarily by the Gemological Institute of America (GIA) to determine a diamond’s quality and value. The factors include weight (Carat), absence of color (D–Z), clarity (from FL/IF to I3), color (from D to Z), and cut quality.
Carat – Size
The weight of a diamond is measured in carats. One carat equals 100 points, or 0.2 grams.

Clarity – Purity
The clarity scale is based on the number, size, location, and visibility of impurities and imperfections present in the diamond. These imperfections affect the diamond’s brilliance and the reflections it emits.

Color
The most valuable diamond is completely colorless. Diamonds are graded on a scale ranging from D (colorless) to Z (yellow tint).

Cut
Diamonds can be cut into various shapes. Some of the most popular are: brilliant, oval, marquise, pear, heart, emerald, princess, and radiant.





