What is the ideal size for a diamond? (2024)

The weight of a diamond is measured in carats (ct), and it is an important factor to consider when buying a diamond. However, the weight of a diamond should not be confused with the quality of a diamond. The quality of a diamond is determined by factors such as color, clarity, and cut, which influence a diamond's brilliance, clarity, and symmetry.

It is important to note that the price of a diamond is strongly related to its weight, the heavier the diamond, the more expensive it will be. However, a lighter diamond may have a higher quality and be shinier than a heavier diamond. In fact, a smaller but high quality diamond can have the same price as a larger but lower quality diamond. It is therefore important to find a balance between the weight and the quality of a diamond to obtain the best value for money.

Visualize different carats of diamonds on a hand, a bust, an ear

Compare carat size

For engagement rings, an ideal weight for a diamond is generally considered to be between 0.30 and 1 carat. This size is popular because it's big enough to grab attention, but not too big to be ostentatious or expensive. However, the ideal weight will also depend on personal preferences and budget. Some people prefer a smaller diamond for a more understated look, while others prefer a larger diamond for a more extravagant look. It is therefore important to consider your preferences and budget when selecting the ideal weight for an engagement ring diamond.

For pendants and earrings, the ideal weight for a diamond can vary depending on the size and shape of the piece of jewelry. For pendants, a weight between 0.30 and 0.70 carats is often considered ideal because it is small enough to be inconspicuous, yet large enough to be noticed. For earrings, a weight of around 0.20 to 0.50 carats is often considered ideal because it is large enough to attract attention, but not too large to be bulky. However, it is important to consider your preferences and budget when selecting the ideal weight for a diamond pendant or earrings.

For wedding rings, the ideal weight for a diamond is generally considered to be between 0.01 and 0.20 carats. This size is popular because it's small enough to be discreet and suitable for everyday use, yet large enough to be noticed. However, the ideal weight will also depend on personal preferences and budget. Some people prefer a smaller diamond for a more understated look, while others prefer a larger diamond for a more elegant look. It is therefore important to consider your preferences and your budget when selecting the ideal weight for a diamond for a wedding band.

In conclusion, the ideal weight for a diamond will depend on your personal preferences and your budget. It is important to strike a balance between the weight and the quality of a diamond to get the best value for money. It is also important to consider the type of jewelry and the use for which you are buying the diamond. It is recommended to consult a professional to help you make a wise choice and to fully understand the quality criteria of diamonds.

RingsNecklacesEarrings

Equivalence for round brilliant diamonds

Examples of different diamond measures

Our recommandation

We recommend diamonds with a white hue between D (exceptional white+) and H (white) because the whiteness of the diamond increases its brilliance. From color grade I and J (slightly tinted) onwards, diamonds are slightly yellow-tinted: avoid on white gold and acceptable on yellow gold.

Our recommandation

​We recommend that you avoid choosing a Pique diamond, because inclusions are easily seen with the naked eye, alter the brilliance and can even weaken the stone. The clarities included in VS and SI1 are the most recommended , unless you have the budget to let yourself be tempted by IF or VVS clarities, which sign the diamond in its highest dimension: that of purity.

Our recommandation

We advise you to choose a diamond with a quality rating equal to Excellent (EX) or Very Good (VG) to maximize the refraction of light and therefore the diamond brilliance.

​The three major diamond certification laboratories HRD, IGI and GIA laser engrave the certificate number on the girdle (circumference) of the diamond. The certificate number is therefore engraved on all our HRD, IGI and GIA certified diamonds. This is a proof of the good match of the diamond and its certificate. The inscription is very small (to preserve the purity of the stone) and very difficult to read with the magnifying glass 10X.

If you order only the diamond (without the jewel), it will be delivered under seal in a rigid plastic pouch (see photo below) for diamonds certified by HRD or by IGI. For GIA diamonds, the seal must be specifically requested in the comments field during the ordering process.

Our recommandation

Since fluorescence may in some cases give a milky diamond appearance, prefer a diamond without fluorescence ("None" or "Nil")

Our recommandation

We recommend choosing a polish rated Excellent (EX) or Very Good (VG) to ensure the best finish and shine.

Our recommandation

We advise you to choose a diamond with a symmetry rating equal to Excellent (EX) or Very Good (VG) to maximize the sparkle.