Because of each country's product availability, the selection on this site may not be the same as the one you were previously on.Confirm
TODAY WE HAVE 663
Celebrate your love in bold, brilliant fashion with a stunning 4 carat diamond from Blue Nile. This statement-making size is dazzling in any piece of jewelry, pairing beautifully with all setting styles. Enjoy a classic look with a round brilliant diamond, or bring a unique flair to your piece with one of our fancy-shape diamonds. As you shop our 4 carat diamond selection, choose a higher cut grade for matchless brilliance.
Browse our catalog of over 663 diamondsSHOP NOW
Shape, color, cut, clarity, and carat all affect a diamond's price. A 4 carat loose diamond can range in price from about $28,000 to $160,000.
Of all of the 4 Cs, the cut should be prioritized. The cut of the diamond determines the light reflection. Diamonds with an ideal grade or higher will provide maximum brilliance.
Carat plays the biggest role in the final price of a loose diamond. If you choose a stone just under the carat weight you want (e.g., a 3.9 carat weight instead of 4.0), you'll save on the price of the diamond. This is called "buying shy."