In our opinion, a consumer’s goal should be to find the cheapest (in regards to clarity other factors matter as well) “eye-clean” diamond you can find. Eye-Cleanliness is ParamountĮven though this article is about carat size, eye-cleanliness is an important part of picking out a diamond. For simplicity’s sake, for the rest of this article, I will refer to diameter, but what I am writing applies equally to non-round shapes.
They will be able to help you find the balance between “getting the biggest diamond” and “not wasting money to gain carat size that won’t be noticeable.”įor a round diamond, that’s the diameter, and for other shapes, it’s a function of length and width. You are best off asking one of our experts to guide you through this process. One of these diamonds has a heavier carat weightīut poorer cut. All you can really see when you look at a diamond is the size of its surface area on the top of the diamond, as displayed above in our diamond size chart. They show different diamond sizes on a woman’s hand using a simple sketch.Īnd if you think about it even more, your eye also doesn’t see the total physical size of the diamond, because most of it will be covered in jewelry. If you’re not sure how a certain carat size may look on your finger, check out James Allen’s Carat Weight Tool. In truth, this 1.30ct from BN will be far more brilliant and will appear to be the same size (they have the same diameter). You might think it’s worth getting this 1.50ct diamond from Blue Nile even though it is poorly cut. People see size not weight, particularly the face of the diamond. But you will definitely see the difference between those one carat diamonds and this 1.50ct diamond from James Allen. Think about it. When you look at a diamond set in a ring, what does your eye see? Does your eye see weight, or does your eye see physical size? Obviously, your eye can only see physical dimensions-light doesn’t carry weight information back to your eye.įor example, you may not see the difference between this G color diamond from James Allen and this H color diamond. To imagine the diamond sizes even better, take a look at this simple image comparison to a US quarter:
Consult with a professional member of our Diamonds.Pro team for more details. *Sizing of diamonds is based on averages for a brilliant round diamond. For example, a round diamond’s diameter of 9.00mm to carat is 2.75ct on average. In the diamond size chart below, we display the diamond’s diameter mm to carat weight based on averages of round brilliant diamonds. The diamond size chart is meant to be a reference point, as diameters of diamonds vary based on cut quality. Diamond Size Chart: MM to Carat WeightĪ diamond size chart can help you determine what might be the right carat weight for you by providing a mm to carat comparison. On the other hand, this beautifully cut 1 carat diamond from Blue Nile has an Ideal Cut with an easily noticeably larger diameter of 6.5mm. For example, this 1 carat diamond from Blue Nile has a terrible cut with a 66.7% depth. They will be able to help you find the balance between “getting the biggest diamond” and “not wasting money to gain carat size that won’t be noticeable.” You can also refer to our diamond size chart below.Īlways keep in mind the cut quality, since a poorly cut heavier diamond can look smaller than an excellently cut lighter diamond. In reality, there is no person on earth who can tell the difference in size between these two diamonds without using a scale. After all, it’s 4% larger and only $100 more.
For example you may think this diamond from Blue Nile is a great deal compared to this diamond from Blue Nile. Yet this gorgeous diamond from Blue Nile will look just as perfect as the previous diamond, yet it’s 25% larger for the same price.Īnother issue we will address is the law of diminishing returns. Keep in mind that if you follow that route, you may end up with a diamond like this one from Blue Nile for your $5,000 budget. Some salespeople might try to push “only the best” on you. What is the Weight of Half Carat Diamond?Ĭhoose the lowest color and clarity that still look great to the naked eye, and then choose the largest diamond carat weight that still fits within your budget. Buying through links on our site may earn us commissions.
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