What is a carat?
Round cut diamond carat sizes drawn to scale on a hand.
How big is a carat?
When cut with the proper proportions and quality, a 1 carat round diamond is 6.5 millimeters across, a 2 carat round is 8.0 millimeters and a 3 carat is 9.1 millimeters. A 1 carat round diamond is the most common size diamond carat size and diamond shape for engagement rings. Our graphic shows the approximate size of each carat size on a hand for reference. One thing to note as well, if you have a smaller ring size (2-5), the diamond carat sizes will look bigger on your fingers and vice versa for those with larger finger sizes (8-12), carat sizes may look smaller on your hands.
The Abelson diamond engagement ring features a 3 carat oval center stone.
Diamond Carat Price
The carat weight of a diamond largely affects the price of your stones. There are many factors that go into diamond pricing, all of 4 C’s of course affect the total price of your stone, but carat weight makes an especially big impact on what that final price is going to be. Whenever you get to this specific carat weights like 1.0 carat, 1.5 carat, 2.0 carat, 3.0, you see some pretty steep price point jumps because of the rarity factor— diamonds are naturally occurring substance in our earth and require a ton of energy and work to find. The average yield in most diamond mines is 1 part diamond to 1 million parts host rock. The larger in carat size you go, the rarer that particular diamond becomes. My recommendation for saving some money in the carat weight department is going just under the carat marks. For example, instead of a 1 carat, go for a .99 carat stone or .95 carat stone. Instead of a 2 carat go for a 1.95 carat stone. The sizing will look really similar to the look you are trying to achieve without the price tag that comes with each carat size threshold. You won’t save a crazy amount of money, but it will still save you some – everything adds up.
Does a halo make a diamond look bigger?
At the end of the day it comes down to what do you value and what are you looking to get out of your engagement ring? Some people really value having a large carat size, and to some it doesn’t matter as much. If you are shopping for a ring for your partner make sure to get their opinion, maybe you’re budgeting for a carat size that you don’t even need, or maybe you’re not budgeting enough for the carat size you need. Everyone has different preferences and styles when it comes to the ring.
For more information download our free guide: 7 Things You Need To Know Before Buying An Engagement Ring
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