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Let’s have a look at how ‘Diamond Carat Weight’ impact the stone's quality.
The word ‘carat’ has been derived from carob seeds. Those seeds were uniform in size and weight, which made them perfect for measuring the weight of gemstones. Gemstones were placed on a scale with carob seeds on the other side for weight measurement. The higher the number of seeds on the scale, the heavier the gemstone was, and thus the higher it was priced. One carob seed is roughly equivalent to one modern carat, the word we use today to describe the weight of diamonds. In the Far East, diamonds were historically weighed against grains of rice, resulting in the coining of the term 'grainer'. Today, gemologists still quantify the weight of diamonds in grainers. A four-grainer diamond is equal to one carat. In this way, Carat has become the unit of weight for a diamond. Since 19th Century, carat weight has been gauged against the metric system, with one carat equaling 0.2 grams or 0.007 ounces. Carat weight is measured to three decimal points and rounded to the nearest hundredth. Diamond carat weight is the measurement used to measure the weight of the diamonds and colored gemstones.
In simple words, carat of a diamond refers to stone weight not its size. However, both size and carat weight sounds confusing, but they have lot of difference. Size of a diamond indicates its diameter and carat is the overall weight of the diamond. One carat is equal to 200 milligrams or 0.2 grams. Diamond price varies with carat weight. Carat weight changes with the change in shape and cut of a diamond. Diamonds with equal carat weight don’t have the same size due to the difference in measurements. Two diamonds with same carat weight can have different prices due to color, clarity and cut. Price of a diamond increases with carat weight. In carat weight of a diamond, there is a cutoff weight. Usually under size diamonds carry cutoff weight. There are some standard cutoff weights – 0.25 ct., 0.50 ct., 0.75 ct., 0.90 ct., 1.00 ct., 1.50 ct., and 2.00 ct. In the process of maintaining the cutoff weight, beauty of a stone disappears.
The production of a single, one-carat diamond can require the mining of up to one million rough diamonds. The process of finding a larger diamond is even more intensive. The rarity of larger, high-quality diamonds has resulted in major price escalations between sizes. For instance, a one-carat diamond can be priced four to six times more than a half-carat diamond. The price of a diamond continues to increase as its size gets bigger and bigger. Diamond pricing is determined by carat weight and broken down in half-carat increments. Therefore, assuming factors like cut and clarity are equal; a diamond weighing one carat will cost more than a diamond weighing slightly less than one carat. However, if the cut and clarity are not equal, it is possible that a diamond with a one-carat weight will cost less than a smaller diamond. For this reason, it is important to consider all these factors, including the cut, color, clarity, and carat, when choosing a high-quality diamond.
Many people believe that the carat weight is a measure of the diamond’s size, but that’s not exactly true. The carat weight is a measurement of the diamond’s weight. While its carat measurement indicates the weight of a diamond, its length and width measurements indicate the actual physical size, or how big the diamond will appear when viewed from above. Diamonds of the same carat weight can vary in size depending on how they are cut. For example, a one-carat round diamond could measure 5.9 mm in diameter, while another one-carat round diamond could be 6.5 mm wide. Both diamonds are the exact same weight, but one is cut with a larger table, making it appear larger than the other. Broader diamonds with larger millimeter measurements create greater visual impact. The price of a diamond typically rises as the carat weight increases. If carat weight is the most important factor in your search, consider a diamond with a clarity grade of Slightly Included (SI1-SI3) and a color grade of Near Colorless (G-J). By choosing a slightly lower clarity and color grade, you can find a larger diamond within your budget.
The carat weight is not the only factor that affects the diamond’s appearance and perceived size. The shape of a diamond may impact how the stone appears when viewed from above. Diamond shapes cut at lower depths will have larger lengths and widths. Shapes like oval or marquise diamonds are elongated, which means they cover more of the finger, resulting in the illusion of a larger size per carat weight. Emerald cut diamonds also look larger than their true size due to their elongated rectangular shape. Other shapes, such as princess or round brilliant, are not elongated, so they may not appear as large in comparison. When choosing a carat weight, be sure to consider the ring size of the wearer. The average engagement ring diamond is 0.75 carats, but the diamond will appear larger on a size-5 finger than it would on a size-9. Look at this diamond size chart to get a better idea of how various carat weights will look on your hand.
