Gorgeous Channel Engagement Ring
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Make a brilliant statement with a ring or necklace featuring a sparkling 1 carat diamond from Blue Nile. One carat diamonds are very popular here, since they strike a nice balance between size and value. Shop our full selection of 1 carat diamond shapes, prioritizing cut grade to maximise brilliance.
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The size of a 1 carat diamond varies based on the diamond shape selected. Our diamond size chart breaks down the differences in the shapes.
When you want the look of a 1 carat diamond without a hefty price tag, consider "buying shy." This means purchasing a diamond with a carat size of .90 to .99 instead of a full carat. The difference won't be very discernible to the eye, but it will lower the price.