When buying loose diamonds, you want to be sure that you understand the specs and certifications of the stone. The best place to buy loose diamonds is a place where you can read the diamond’s IGI or GIA certifications, look at detailed photos of the stone and reach out with any questions you may have. We are proud to offer not only the best ...

Use our diamond search feature to find IGI and GIA-graded, conflict-free loose diamonds of the highest quality. Browse thousands of options and use the filters to narrow down the selection by carat, cut, color, clarity, shape, and price. Still not sure which diamond to invest in? Our diamond buying guide will help you choose the best match.

Round cut diamonds take the most raw material to create when they are cut from a rough diamond. While carat weights under .75 are only slightly more expensive than similar fancy cut diamonds, as carat weight increases (especially at the 1 ct. mark), the cost increases more significantly. Learn more in our guide to how diamond shape affects price.

Blue Nile is the world's leading diamond jeweler online for engagement and wedding rings. Expect lower markups and higher quality fine jewelry. ... The presentation box also secures your appraisal certificate and diamond grading report. Loose diamonds are presented in a velvet lined diamond case that securely holds the stone.

Find truly unique naturally colored diamonds from Blue Nile. Shop for yellow or canary diamonds, pink diamonds, blue diamonds, and more for a look that is one of a kind. Cherish the Moment | Up to 30% Off | DETAILS › 1-800-242-2728. Stores. Virtual Appointment ...

Whether you’re searching for a 2 carat lab grown diamond engagement ring or matching half carat lab diamonds for a pair of earrings, there are many stones available. You can find the perfect lab diamond for earrings, necklaces, bracelets and more among our large selection of lab created loose diamonds.

Find the perfect princess cut diamond from Blue Nile’s collection of loose certified diamonds. With a square shape and pointed corners, princess diamonds are a classic option for most engagement rings and other jewelry. Cherish the Moment | Up to 30% Off | …

Find fancy colored diamonds in a variety of hues, cuts, carats and shapes. Choose a natural or lab made diamond on its own or add your graded gem to a signature piece of Blue Nile jewelry. Cherish the Moment | Up to 30% Off | DETAILS › 1-800-242-2728. Stores. Virtual Appointment ...

Build a custom, timeless and beautiful 2 carat diamond ring with Blue Nile’s large selection of certified conflict-free 2 carat diamonds. Choose from lab or natural two carat diamonds for rings and other custom jewelry. ... We offer a wide selection of loose diamonds, perfect for 2 carat diamond rings, at a variety of price points for many ...

The exact 1 carat diamond price of an individual gemstone will depend on its 4Cs along with the diamond’s shape. We offer a leading selection of loose one carat diamonds for sale in a variety of shapes, quality ratings and styles to match any budget. Our selection of certified 1 CT diamonds represents some of our most affordable gems.