1. Four criteria for diamond quality: 4C
Every diamond is graded according to the so-called 4C: cut, color, clarity, and carat weight.
Ideal Cut: diamond cut
The cut determines how a diamond reflects light and how intensely it sparkles.
- At BELLER, we only use diamonds with an ideal or very good cut, ensuring maximum brilliance.
- Even a large diamond without a perfect cut will not look spectacular in an engagement ring.
Color: colorless and transparent
The color of a diamond affects its visual purity and the elegance of the ring.
- Our diamonds belong to the highest color grades (D-E), guaranteeing crystalline transparency and a luxurious appearance.
Clarity: diamond clarity
Diamond clarity refers to the presence of inclusions and minor blemishes within the stone.
- At BELLER, we select diamonds almost free of inclusions (VS1-IF), which provides full transparency and perfect brilliance in every engagement ring.
Carat: the balance between size and brilliance
The carat weight of a diamond determines its size, but the right cut and proportions are equally important.
- Our premium diamond rings maintain an ideal balance between the size of the stone and its brilliance, making every ring look exceptional.
2. Diamond certificate – guarantee of the highest quality
Every BELLER diamond comes with a certificate from a renowned gemological laboratory, such as GIA or IGI.
- The certificate confirms the authenticity and parameters of the stone.
- Thanks to it, you can be sure that your premium diamond engagement ring is made from the best stone, which will retain its value and brilliance for years.
When buying a diamond ring without a certificate, you have no guarantee of quality – at BELLER, every diamond is personally selected to ensure perfection and a unique visual effect.
3. Optical evaluation of a diamond – what to look for
Although the certificate is most important, you can also assess a diamond yourself:
- Brilliance: a diamond should intensely reflect light from every angle.
- Transparency: a premium diamond is crystal clear, with no visible inclusions to the naked eye.
- Color: the best diamonds are colorless or nearly colorless, enhancing the elegance of an engagement ring.
4. Why choose BELLER – premium engagement rings
At BELLER, we work exclusively with the highest quality diamonds, so every ring:
- is certified and transparent in terms of quality,
- has an ideal cut and intense brilliance,
- is designed to highlight the elegance and luxury of a BELLER engagement ring.
By choosing a BELLER ring, you receive not only beauty but also a guarantee of the highest quality that will last a lifetime. Learn more about our jewelry workshop and guarantees of the highest quality.
5. Want to know more than the basics of 4C?
The above criteria are fundamental, but experienced buyers also pay attention to more subtle features, such as fluorescence or the precision of the cut's symmetry. We expand on this topic in the guide the art of choosing a diamond, a guide for the discerning.
The best way to evaluate a diamond is live, in various lighting conditions. We invite you to the BELLER atelier at Mokotowska 71 in Warsaw and Szczepańska 9 in Kraków, where we will compare several stones side by side.