Round Diamonds

The most popular diamond shape in the world, the round brilliant cut maximizes light return with 58 precisely angled facets. Developed over centuries of optical research, it delivers unmatched fire, brilliance and scintillation — the benchmark against which all other shapes are measured. Every round diamond in our inventory is individually certified by GIA, IGI, or HRD and can be set in any of our engagement rings, pendants, earrings, or bracelets.

Carat weight depends on your budget and the setting style. A well-cut diamond can appear larger than its carat weight suggests. Use the carat slider in the filter panel above to set your preferred range. For engagement rings, 0.50–1.50 carats is the most popular range. For stud earrings, 0.25–0.50 carats per stone is standard. Our diamond buying guide covers carat weight in detail.

Diamond color is graded on a scale from D (colorless) to Z (light yellow). D–F diamonds are colorless and command a premium. G–H are near-colorless and offer excellent value — most people cannot distinguish them from colorless stones once set. I–J show a faint warmth that can complement yellow gold settings beautifully. Learn more in our 4Cs guide.

Yes. Every diamond in our inventory is 100% conflict-free, ethically sourced, and certified by an independent gemological laboratory — GIA (Gemological Institute of America), IGI (International Gemological Institute), or HRD (Hoge Raad voor Diamant). Each certificate documents the diamond's carat weight, color, clarity, cut, and proportions. Learn more in our certification guide.

Absolutely. Every loose diamond can be set in any of our jewelry settings. Use our Design Your Own Ring tool to pair your diamond with the setting of your choice, or contact our team for a fully custom design. Choose from 14K gold, 18K gold, or platinum in yellow, white, or rose.

Yes. Every diamond order ships free with full insurance via a secure, trackable carrier. We also offer a 30-day money-back guarantee — if you are not completely satisfied, return your purchase for a full refund. Learn more about our return policy.