What is a carat?

Understanding the carat unit used in diamonds is an important step in choosing jewelry containing gemstones. A carat refers to the unit of weight used for gemstones, equivalent to 200 milligrams.

This means, in practice, that a piece of jewelry containing diamonds weighing 0.5 carats has 100 milligrams, or 0.1 grams, of gemstones. This doesn't directly determine or indicate anything about the arrangement or number of diamonds, as the carat value refers only to the total weight of the diamonds in the jewelry, whether it's one large diamond or many small ones.

Larger Carat = More Impressive Diamond?

Not necessarily. The carat unit primarily refers to the weight of the gemstone, not directly to how large it looks. A larger carat value thus refers to a heavier diamond, but ultimately, the cut of the stone will affect how large the diamond looks. For example, a flatter diamond may appear significantly larger than its weight compared to a diamond that is deeper but smaller in surface area.

Impact of Carats on Diamond Price?

When comparing diamonds, it's important to note that a diamond with a higher carat weight is not automatically more valuable. Other characteristics, such as their clarity and color, significantly affect diamonds' value. The value of two diamonds with identical weight can vary greatly depending on how flawless they are or if one of them has a rare color.

Therefore, it's not wise to blindly focus on the carat value when choosing diamond jewelry. The cut, setting, and coloring of diamonds play a significant role, as well as the distribution of the total carat weight in the jewelry. Two rings with identical carat amounts can look significantly different, one with a single large diamond and the other with many small diamonds closely set together. The carat number itself doesn't tell nearly the whole truth about the appearance of the jewelry.

When buying jewelry, it's better to pay more attention to the setting and cut style of the gemstones than to the pure carat weight. Different cutting styles and settings can create compositions that appear significantly larger than the total weight of the stones. For example, jewelry where gemstones are set in a halo style typically appears larger than its pure carat weight and gives off a more valuable impression.


How much does 1-carat diamond cost?

The price of a diamond naturally depends greatly on its purity and color shade. Therefore, the weight of two identically sized diamonds can significantly differ from each other. The emergence of lab-grown diamonds in today's market further complicates answering this question. At the least expensive, a lab-grown diamond can be acquired for a few thousand, but the prices for pure, flawless natural diamonds can significantly increase, even to tens of thousands.

How much does a half-carat / two-carat diamond cost?

It is unequivocally impossible to say how much a diamond of any particular size will cost, as numerous different factors influence it.

The price of diamonds also does not increase linearly with the gem's carat values, as the larger the diamond, the rarer it is. For this reason, for example, two half-carat diamonds are significantly cheaper than one one-carat diamond.

Fun Fact About Carats!

An interesting detail about the history of the carat unit is its origin, which refers to the carob tree seed that was traditionally used as a counterweight in scales.

Need more tips on choosing a ring? Check out these popular ring categories!