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1.5 Carat Diamonds

Create a brilliant custom piece of jewelry around the captivating beauty of a 1.5 carat diamond, available at Blue Nile. As you shop the traditional 1.5 carat round diamonds and the nine fancy shapes included in this selection, pay special attention to cut grade to maximize the diamond’s brilliance. This statement-making carat weight is ideal for engagement rings that will sparkle for a lifetime.

Shop All 1.5 Carat Diamonds

11 of 2,332 1.5 Carat Diamonds

This 1.5 carat round diamond I color si1 clarity has Very Good proportions and a diamond grading report from GIA

1.50 Carat I-SI1 Very Good Cut Round Diamond

$4,750

This 1.5 carat round diamond I color si1 clarity has Excellent proportions and a diamond grading report from GIA

1.50 Carat I-SI1 Excellent Cut Round Diamond

$4,750

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,000

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,000

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,020

This 1.51 carat round diamond I color si1 clarity has Very Good proportions and a diamond grading report from GIA

1.51 Carat I-SI1 Very Good Cut Round Diamond

$5,030

This 1.5 carat round diamond H color si1 clarity has Very Good proportions and a diamond grading report from GIA

1.50 Carat H-SI1 Very Good Cut Round Diamond

$5,040

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,080

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,110

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,110

1.50 Carat I-SI1 Very Good Cut Round Diamond

$5,300

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FAQs about 1.5 Carat Diamonds

How much is a 1.5 carat diamond?

There are many factors that affect loose diamond prices, including shape, color, cut, clarity, and carat. Round diamonds are more expensive per carat weight than the nine fancy diamond shapes.

How big is a 1.5 carat diamond?

The shape and individual cut of a diamond determine the size of the stone. On average, a one-and-a-half-carat round diamond will measure 7.4mm in diameter, while an oval cut measures 9mm x 6mm. Blue Nile offers a half-carat diamond size chart that illustrates the differences in all shapes and sizes.

Which of the 4Cs is the most important?

The 4 Cs are carat, color, clarity, and cut. Carat impacts the price the most, but when you want to maximize brilliance, the cut grade is the most important.

How can I maximize my budget for a 1.5 carat diamond?

One of the best ways to make your budget go farther is to "buy shy" and look for diamonds that have a carat weight of just under 1.5 rather than a 1.5 carat weight.