A cushion lab grown diamond engagement ring is a ring set with a square or rectangular lab-grown diamond cut with softly rounded corners — a shape that pairs a pillowed silhouette with broad, candle-lit facets.
The Satéur Aurous Gold Destinée Diamond Ring™ opens this edit with a real, IGI-certified lab-grown diamond for a fraction of the mined price — proof that a cushion engagement ring can carry full carat presence without the five-figure invoice. Every piece here arrives with complimentary delivery, a lifetime guarantee, and the signature Satéur box, so the moment you hand it over feels as considered as the stone inside it. This is the cushion shape rendered the modern way: certified, generous, and built to be worn for the rest of a life.
Each ring is set in solid 18K gold — never plated, never a finish — chosen for the warmth and weight that a lifetime ring deserves. The centre stone is a genuine lab-grown diamond, grown under controlled conditions and graded by IGI to the same standards applied to mined material. What you read on the certificate is what sits on the hand: a documented stone with documented quality, not a substitution.
A cushion lab-grown diamond is a real diamond, registering 10 on the Mohs scale — the hardest material on earth — so it resists the daily knocks that a forever ring inevitably meets. Across this edit the diamonds are graded D–E for colour, Excellent for cut, and VS for clarity, the combination that gives a cushion its quiet, water-clear glow. The rounded corners catch light from every angle, softening the brilliance into something romantic rather than sharp.
The grid below moves across solitaire and cathedral settings, round and cushion-leaning silhouettes, and carat weights that scale from an everyday statement to a true centrepiece — woven through 18K white gold and warm yellow gold so the metal flatters the wearer as much as the stone. Whether the priority is an elongated cushion presence, a classic cushion cut diamond profile, or a particular price band, the range is built to be browsed by what matters to you. The grid below shows every piece.
Explore related lab-grown diamond styles: 3 Carat Oval Lab Grown Diamond Ring, 2 Carat Round Lab Grown Diamond Ring, 2 Carat Emerald 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.