4 Carat Lab Grown Diamond Ring

The Satéur Triomphe Diamond Ring™ leads this edit with a real, IGI-certified lab-grown diamond for a fraction of the mined price — four carats of documented presence without the four-carat mined invoice. A stone this size is rare and ruinously expensive when pulled from the earth; grown in a lab, that same certified weight becomes attainable, and it arrives with complimentary delivery, a lifetime guarantee, and the signature Satéur box. This is the statement carat done sensibly.

Every ring is set in solid 18K gold — never plated, never a finish — because a four-carat centre needs a band with genuine substance to carry it for a lifetime. The diamond itself is a genuine lab-grown stone, grown under controlled conditions and graded by IGI on the same scale as mined material, so the carat weight on the hand matches the carat weight on the certificate exactly.

A 4 carat lab-grown diamond is a real diamond, registering 10 on the Mohs scale — hard enough to take everyday wear at a size that demands it. Across this edit the stones are graded D–E for colour, Excellent for cut, and VS for clarity, the spec that keeps four carats looking icy-white and clean instead of glassy. At this weight, an Excellent cut is non-negotiable: it is what makes the stone throw light rather than simply sit large.

The grid below spans round, oval and radiant cuts, solitaire and accented settings, and 18K white and yellow gold — so you can weigh shape, price and metal against the carat weight that drew you here. Whether you want a round 4 carat's classic fire, an oval's elongated reach, or a particular price point, the range is built to be sorted by what matters. The grid below shows every piece.

Explore related lab-grown diamond styles: 1 Carat Lab Grown Diamond Ring, 2 Carat Lab Grown Diamond Ring, 3 Carat Oval Lab Grown Diamond Ring. For the full range, browse the Lab Grown Diamonds collection, and to compare a certified lab diamond against a mined stone read Lab Grown vs Natural Diamond.