Diamond Size report
When buying diamond jewelry, in addition to quality and price, size is also critical. Diamond jewelry that is too large or too small will have a lot of differences in design. A diamond that is too large may also make your life more stressful. Do you know what factors you need to know when determining the size of a diamond?
For common standard round diamonds, each score has a corresponding size standard. For example, the diameter of a 30-point diamond is generally 4.5mm, and the height is 2.7mm. Except for round diamonds, other diamond shapes are called "special-shaped diamonds." These different-shaped diamonds also have their weight and size corresponding standards.
The weight of a diamond is the most important measure. Usually, the weight of a diamond is expressed by ct. The standard 1 carat = 200 mg = 0.2 grams and 1 carat = 100 points. Although diamond cutting techniques are different, there is still a rough diamond diameter and weight ratio. The following article shares this size comparison table, allowing you to understand the relevant diamond size standards easily.
Diamond Size Guide
In reality, people have no way to know the size of diamonds with eyes. In order to understand the diamond size more accurately, a diamond size comparison table came into being. Do you know that a diamond can be measured in weight(ct) and size(mm)? Even though the price is set by its carat weight as it is a standard unit of measurement for diamonds, it is also essential to consider its size and ratios to ensure that you receive the best diamond possible, worthy of your budget.
Coommon Diamond Shapes
Diamonds with the same carat weight can have different cuts and widths, and so some shapes may appear more prominent even though they are made from the same carat size. It would be best if you first got to know all about diamonds in different shapes so that you may estimate the actual size of diamonds of varying carat weights.
- Round Cut Diamond
The Round-Cut Diamond is a classic diamond cut, and it is also the most popular diamond cut for engagement rings and wedding rings. The cut is symmetrical. The refraction of light gives off a sparkle with its 58 facets, making the brilliant round cut have one of the most fire and sparkle.
- Princess Cut Diamond
The Princess-Cut Diamond is a perfect square, beautiful and sharp. The standard size of princess diamonds will vary according to different diamond sizes. For example, a 1-carat princess diamond has a diameter of 5.5mm, a 1.5-carat princess diamond has a diameter of 6.4mm, and a 2-carat princess diamond has a diameter of 7mm.
- Pear-shaped Diamond
The Pear Shaped Diamond is another diamond shape that is a unique classic. Its characteristics include a water drop shape. Drop-shaped diamonds are larger, and standard-cut drop-shaped diamonds are relatively rare because of their unique shape. These pear-shaped diamonds can also be worn as earrings and necklaces. Regardless of what form the Pear Shaped Diamond comes in, it will still charm all eyes on them.
- Oval Cut Diamond
The Oval Cut Diamond or the Egg-Shaped Diamond is considered a popular choice for engagement rings and wedding rings. Oval diamonds are also larger in size among special-shaped diamonds. Among diamonds of the same weight, oval diamonds look more prominent.
- Emerald Cut Diamond
The Emerald Cut Diamond or the Rectangle Shape Diamond has its cutting technique adapted from gem "Emerald," which is how this cut received its name. This diamond cut is considered famous for vintage-style jewelry. The most charming aspect of this diamond-cut comes from its wide diamond table.
- Heart-shaped Diamond
The Heart Shaped Diamond is a symbol of love and romance. The cutting process is extremely delicate. It requires a perfect 1:1 ratio and a Modified Brilliant Cut technique that gives this diamond shape the same brilliance as the round-shaped diamonds.
- Marquise Cut Diamond
The Marquise Cut Diamond is a trendy choice for stylish jewelry. The diamond is shaped like an eye or a grain of rice; it is suitable for those with larger fingers because it will help elongate your fingers to look more slender and elegant. The shape of a marquise diamond determines its length will be more prominent.
Diamond size comparison tables
The parameters in the following table are the carat and diameter of the different-shaped diamond. Different carats correspond to different diameters. It provides a particular reference for judging the size of the diamond. It can be seen from the table that the larger the diamond carat, the larger the diameter.
| Carat Weight | Round Cut Diamond | Princess Cut Diamond | Pear-shaped Diamond | Oval Cut Diamond | Emerald Cut Diamond | Heart-shaped Diamond | Marquise Cut Diamond | Cushion Cut Diamond | Asscher Cut Diamond |
|---|---|---|---|---|---|---|---|---|---|
| 0.25 ct. | 4 mm | 3.5 mm | 5.5x3.5 mm | 5x3 mm | 4.5x3 mm | 4.2 mm | 6.5x3 mm | 4x3.5 mm | 3.7 mm |
| 0.5 ct. | 5 mm | 4.4 mm | 7x4.5 mm | 6x4 mm | 5.5x4 mm | 5.4 mm | 8.5x4 mm | 5x4.5 mm | 4.4 mm |
| 0.75 ct. | 5.8 mm | 5 mm | 8x5 mm | 7.5x5 mm | 6x4.5 mm | 6.0 mm | 9.5x4.5 mm | 6x5 mm | 5 mm |
| 1 ct. | 6.5 mm | 5.5 mm | 8.5x5.5 mm | 8x5.5 mm | 6.5x5 mm | 6.7 mm | 10.5x5 mm | 6.5x5.5 mm | 5.5 mm |
| 1.5 ct. | 7.3 mm | 6.4 mm | 10x6.5 mm | 9x6 mm | 7.5x5.5 mm | 7.6 mm | 12x6 mm | 7.5x6.5 mm | 6.4 mm |
| 2 ct. | 8 mm | 7 mm | 10.5x7 mm | 10.5x7 mm | 8.5x6 mm | 8.3 mm | 13x6.5 mm | 8x7 mm | 7 mm |
| 3 ct. | 9.3 mm | 8 mm | 12.5x8 mm | 11.5x7.5 mm | 9.5x7 mm | 9.5 mm | 14x7 mm | 9x8 mm | 8.1 mm |
| 4 ct. | 10.2 mm | 9 mm | 13.5x9 mm | 13x8.5 mm | 10.5x7.5 mm | 10.3 mm | 16x8 mm | 10x8.5 mm | 9 mm |
| 5 ct. | 11 mm | 9.5 mm | 15x10 mm | 14x9.5 mm | 11.5x8.5 mm | 11 mm | 17x8.5 mm | 10.5x9 mm | 9.6 mm |
Tips on buying diamonds
Lastly, Several design elements can help accentuate a diamond's apparent size, from a diamond's cut and shape to the setting and style of a ring. When you are purchasing a diamond, keep in mind that the carat weight may not always indicate the diamond’s size as it will differ from shape to shape.
- Buying non-full carat diamonds can save money. Choose a carat weight slightly below the 1 carat and half-carat marks. For example, consider buying a diamond weighing 1.90 carats instead of 2.00 carats. It will be cheaper, but no one will notice the slight difference.
- Spend more money on cutting. The cut is a very important factor because it can significantly increase the brilliance. Even for high-carat diamonds with excellent color and clarity, they may appear dull if cut poorly.
- Special-shaped diamonds are cheaper per carat. Regarding special-shaped diamonds, they are generally cheaper than round diamonds of the same weight. In addition, special-shaped diamonds are usually larger in carat size than the diamond in which they are located, especially when set in a halo setting.
- Remember the ring size. The smaller the finger, the bigger the diamond looks. A 1.50-carat solitaire ring is larger on a 6-yard finger than on an 8-yard finger.
