In modern times, a traditional engagement ring is set with a diamond. However, purchasing the ring may be difficult. Jewelers have special terminology for describing gemstones, and an ordinary person who is trying to decide whether a diamond is a good size for the price may find this challenging. Knowing how diamonds are sized and how the size relates to the price makes this process easier.
The standard measurement for weight in gems is the carat. This term is different from the word carat, which only refers to gold. The term carat comes from carob seeds, which were once used as the standard for weighing gems for trade due to their small size and uniform weight. A modern carat unit is 0.2 grams, or 200 milligrams, which is about the weight of an ordinary paperclip. Professionals weigh diamonds to the closest 100th of a carat.
Price Of A Diamond
The price of a diamond increases with its carat weight. However, the price increase may seem quite steep, with the price per carat of a three carat diamond being much higher than that of a one carat diamond. This is because larger diamonds are rarer than smaller diamonds, so the price per carat is much higher to reflect that rarity. However, weight is not the only determining factor in how much a diamond costs. A small diamond with good clarity, a good cut or an unusual color may be worth more than one with a higher carat weight.
Shape Of The Diamond’s Cut
The shape of the diamond’s cut has a large impact on the width of a diamond relative to its carat weight. In other words, some shapes make a diamond appear larger than others of the same carat weight. For instance, a princess cut diamond has less surface area at the top than an oval cut diamond and thus appears smaller than an oval cut diamond of the same carat size. The brilliant cut is the most popular cut for a diamond and allows for the most sparkle. In addition, because this cut is very regular, it is relatively easy to predict about how large the top of the diamond will be relative to its carat weight. For instance, a 1 carat, brilliant cut diamond will be about 6.5 millimeters or .26 inches across the top, and a 2 carat brilliant cut diamond will be about 8.3 millimeters, or .32 inches across the top.