Black Diamond Search

Use the filter panel above to narrow results by shape, carat weight, color, clarity, cut, and price. You can also toggle between natural and lab-grown diamonds, and filter by certification lab (GIA, IGI, HRD). Results update automatically as you adjust filters. Click any diamond to view its full certificate, images, and pricing.

Yes. Every diamond in our inventory is 100% conflict-free, ethically sourced, and independently certified by 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.

Natural diamonds are formed over billions of years deep within the Earth. Lab-grown diamonds are created in a laboratory using HPHT or CVD technology — they are chemically, optically, and physically identical. Lab-grown diamonds typically cost 60–80% less than natural diamonds of the same grade. Use the toggle at the top of the filter panel to switch between the two. Learn more in our natural vs lab-grown guide.

Absolutely. Every loose diamond can be set in any of our engagement rings, pendants, earrings, or bracelets. Use our Design Your Own Ring tool to pair a diamond with the setting of your choice.

Diamond prices are driven by the 4Cs — carat weight, color, clarity, and cut — along with market supply and demand. Our prices update in real time from a global network of certified suppliers, ensuring you always see the most competitive pricing. Use the price slider to set your budget, and sort by price to find the best value. Learn more in our diamond pricing guide.

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