Diamond Carat Guide: How To Pick the Perfect Size for Your Ring
Overview:
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Diamond carat refers to a standard measurement of weight, not physical size, to determine the mass of a diamond.
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Choose an elongated cut, like pear or oval, to make a diamond look bigger without increasing carat weight.
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A customer’s age, location, and the stone’s cut and setting impact the popularity of certain diamond carat weights.
What Is Diamond Carat and What Does It Really Mean?
If you live in the artistic city of Brea, CA, and you’re in the market for the perfect piece of diamond jewelry, choosing the right carat size can be challenging. The term “diamond carat” refers to a standard metric unit of weight, not size or dimensions, and is used to measure the mass of the stone. Although a higher carat weight can affect a diamond's total value, other important factors also play a role.
This diamond carat guide from the experts at Jeweler’s Touch features some useful tips and information to help you purchase your next diamond ring, necklace, or other style of diamond jewelry with confidence.
Diamond Carat vs Size: Why They’re Not the Same
What is diamond carat, and how does it differ from diamond size? The word “carat” represents the mass of the stone, where 1 carat equals 0.2 grams or 200 milligrams. The visual size of a diamond is based on how the weight is distributed, called the “cut and spread.”
As for diamond carat vs. size, size refers to the physical length and width across the top of the stone, measured in millimeters. The shape and cut of a diamond may impact its appearance, regardless of weight (carat). Diamonds cut in elongated shapes, such as ovals, pears, or marquises, may appear larger than round diamonds, even when they have the same carat weight. Cuts with a larger surface area tend to look bigger, even if they weigh less.
Diamond Carat Size: What Different Carats Look Like
When comparing diamond sizes, it’s important to understand how that relates to carat weight and cut. This diamond carat size comparison demonstrates what specific carats look like in relation to the diamond’s cut, and how that impacts its overall size:
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Round: A round-cut diamond at 1 carat usually measures approximately 6.4mm, while a 1.5 carat round-cut diamond usually measures about 7.4mm, or about the size of a dress shirt button.
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Oval: Oval-cut diamonds at 1 carat usually measure around 8.5 by 5.5mm, and 2-carat oval diamonds usually measure approximately 10.5 by 7mm, about the circumference of an AAA battery.
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Pear: A 1-carat pear-cut diamond usually measures approximately the same as a 1-carat oval-cut diamond (8.5 by 5.5mm), and a 2-carat pear-cut diamond also usually measures nearly the same as its oval-cut counterpart (10.5 by 7mm).
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Cushion: The popular cushion-cut diamond at 1 carat usually measures around 6.5 by 5.5mm, and a 2-carat cushion-cut diamond usually measures approximately 8 by 7mm, about the size of a small pea.
What Is the Most Popular Diamond Carat Size?
The most popular diamond carat size for engagement rings is between 1 and 1.5 carats. If you’re shopping for diamond jewelry, carat weight significantly impacts the cost of a diamond, as stones weighing more naturally cost more because larger stones are much rarer in nature.
Here’s how certain factors may impact the popularity of certain diamond carat sizes:
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Different regions: In the United States, diamonds with higher carats are more popular than in countries like Japan, where petite 0.3 carat diamonds are preferred, or in the UK and Europe, where stones between 0.5 and 0.7 carats are more desirable.
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Geographic location: Customers in large, more affluent metropolitan areas such as Los Angeles or New York City typically prefer diamonds with higher carat weights than those in less densely populated cities or towns.
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Shape: The diamond shape and ring setting often impact a diamond’s popularity, regardless of carat weight, because the perceived size and quality often change based on these factors.
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Customer age: Younger couples tend to choose diamonds between 1 and 2 carats, while older couples often prefer larger stones between 3 and 5 carats due to a higher disposable income.
How To Choose the Right Diamond Carat Size
If you’re wondering how to choose the right diamond carat size, much of it comes down to personal preference. Diamond carat choice is personal, based on the reason for the purchase, your lifestyle, and other factors. Remember these tips to select the perfect diamond carat size:
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Consider how it fits: A 0.5 to 1 carat stone looks best on those with small hands and delicate fingers under size five, while people with ring sizes of seven and higher look best with diamonds in a larger carat weight for better visual balance.
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Remember your budget: If you’re shopping for diamond jewelry on a budget, consider buying just under the next size up, like a 0.90 carat stone instead of a 1 carat stone, or a 1.4 carat stone instead of a 1.5 carat stone. Sometimes you can get a better price on the “just under” weights.
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Keep your lifestyle in mind: People with hands-on jobs, athletes, or those with active hobbies should consider purchasing a smaller diamond with a protective bezel setting to prevent damage.
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Look at the setting style: Halo and certain other settings can make smaller diamonds appear approximately 0.5 to 1 carat larger, creating a stunning piece of jewelry without the higher price tag.
1 Carat vs 2 Carat Diamond: Is Bigger Always Better?
When comparing carat weight, how big is a 1-carat diamond versus a 2-carat diamond? Remember that diamond carat weight refers to the physical weight of the stone, not its size. For a visual, a round, 1-carat diamond typically has a diameter of approximately 6.4 mm, while a 2-carat diamond is around 8.1 mm, or about 50% larger.
You may think that bigger is always better when it comes to diamond jewelry, but it really depends on your priorities. Diamonds with high color and clarity are often more beautiful than those with lower clarity, regardless of carat weight. Diamond cut matters more than carat size, as it determines a stone's brilliance and sparkle, guaranteeing its beauty.
How To Make a Diamond Look Bigger Without Increasing Carat
To make a diamond look bigger without increasing carat, choose the right shape. An oval or emerald shape and spread look larger than a round diamond, even if they have the same carat weight, because they have a larger surface area. Deeper cuts can hide weight and make diamonds look smaller, while well-cut and shallow diamonds appear larger. A cushion-cut diamond features a square or elongated shape with rounded corners for a brilliant sparkle, regardless of weight.
Factors That Affect Diamond Carat Cost
As you ponder how diamond carats affect price, the biggest factor is rarity, as higher carat diamonds are scarcer than lower carat diamonds. The price per carat always increases with weight. Keep in mind that higher carat and cost don’t always equal higher quality. Avoid the common mistake of choosing carat weight over cut and clarity.
Find the Perfect Diamond Carat Size With Jeweler’s Touch
The team at Jeweler’s Touch can help you find the perfect diamond carat size, cut, and more. To schedule a consultation, visit our showroom, or contact us today!
Frequently Asked Questions
Is a 1-carat diamond considered big enough?
Yes, a 1-carat diamond is considered big enough. This weight is often the “gold standard” when it comes to the ideal, classic engagement ring.
What carat diamond should I buy on a budget?
If you’re on a budget, shop for a 0.5 to 0.9 carat diamond. With the right cut and setting, this weight looks just as brilliant and beautiful as diamonds of a higher carat.
How do jewelers measure diamond carat weight?
Jewelers measure diamond carat weight by placing them on special, sensitive electronic scales. These scales are called micro-balances and calculate the weight to one-thousandth of a carat.