Round Lab Grown Diamond Three Stone Engagement Ring

Yes. Lab-grown diamonds pass standard thermal and electrical diamond testers because they are pure crystallized carbon — the same material as mined diamonds. Only advanced laboratory spectroscopy can determine origin. Every Signora Jewels lab-grown diamond ships with an IGI report, and its number is laser-inscribed on the girdle so you can verify the stone free at igi.org.

Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds, and the FTC recognizes them as real diamonds — unlike simulants such as cubic zirconia. They are graded on the same 4Cs of cut, color, clarity, and carat. Signora Jewels uses IGI-certified lab-grown diamonds in every made-to-order diamond ring.

No. Lab-grown diamonds never cloud, fade, or yellow — at Mohs 10 hardness they are structurally identical to mined diamonds, so the brilliance is permanent. Any dullness is a surface film of skin oil or soap, which washes off with warm soapy water and a soft brush. Your Signora ring will sparkle the same decades from now.

Use the Signora Jewels ring size guide — the on-page “Find my size” tool converts a simple millimeter measurement of your finger or an existing ring into your US size. Measure in the evening when fingers are largest, and go up half a size if you’re between sizes or choosing a wide band. Every ring is made to order in your exact size.

About two weeks. The Round Lab Grown Diamond Three Stone Engagement Ring is crafted to order at the Signora Jewels atelier in Surat, then shipped to the US fully insured and tracked with all customs duties prepaid — you pay nothing at delivery. Shipping is free on orders over $500, and you can follow your package door-to-door with the tracking number we send.

Yes — standard designs qualify for Signora Jewels’ 30-day return policy even though each ring is made to order in your size and metal. Customized pieces, such as engraved or bespoke-modified designs, are final sale and cannot be returned. Confirm your size with our ring size guide before ordering so fit never becomes an issue.