From the Maison

3 Carat Lab Grown Diamond Ring

A full three carats of real, IGI-certified lab-grown diamond — set in solid 18K gold, at a fraction of the mined price.

24 PiecesFrom $998Free Worldwide Delivery

The 3 Carat Edit

A 3 carat lab grown diamond ring centres on a real, lab-grown diamond weighing three carats, set in a fine band — a bold, statement-scale stone within the engagement-ring category.

The Satéur Tout Autour 1874 Diamond Ring™ leads this edit: a real, IGI-certified lab-grown diamond for a fraction of the mined price, carried at a full three carats and finished to command the room. Each ring is made-to-order, backed by the Satéur diamond-look guarantee, and delivered worldwide in the signature Maison box with lifetime Satéur Care. Three carats is the weight couples choose when presence is the point — a centre stone impossible to overlook.

The centre is a genuine lab-grown diamond, grown rather than mined, set into solid 18K gold. The metal is true 18K gold throughout — hallmarked, durable, never plated or filled. A mined three-carat diamond of equivalent grade is a major outlay that runs deep into five figures; grown in a lab, the same diamond delivers the identical material for a small fraction of that, which is precisely why this category has reshaped the engagement-ring market.

Because it is a real diamond, it behaves like one: the hardest material used in jewellery at Mohs 10, ready for a lifetime of everyday wear without dulling. Stones are graded in the colourless D–E range, with Excellent cut and VS clarity — the specification that lets three carats of weight return light cleanly and read bright and white across the whole face of the stone. Every centre diamond ships with IGI certification confirming its grade.

The edit gathers the cuts and settings that carry three carats with poise — the round brilliant for full scintillation, alongside cushion, oval and radiant shapes for breadth and finger-length, in solitaire, halo and accented designs. Bands run from crisp white gold to warm gold tones, each engineered to hold a 3 carat lab grown diamond securely for daily life, and customisation across metal and setting is available throughout. The grid below shows every piece.

Explore related lab-grown diamond styles: 2 Carat Pear Lab Grown Diamond Ring, 2 Carat Round Lab Grown Diamond Ring, Pear Lab Grown Diamond Engagement 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.

Free Worldwide Delivery

Tracked, insured, signed-for.

Lifetime Satéur Care

We restore. We polish. We replace.

30-Day Returns

Change of mind, accepted.

Leather Packaging

Every piece, gift-ready.

Questions

3 Carat Lab Grown Diamond Ring, answered.

What is a 3 carat lab grown diamond ring?+

It is a fine ring built around a real, lab-grown diamond weighing three carats. The diamond is a genuine diamond grown in a controlled laboratory environment rather than mined, set into a fine metal band such as solid 18K gold for a bold, statement-scale piece.

What is a lab grown diamond and how is it made?+

A lab grown diamond is a real diamond produced in a controlled environment that recreates the heat and pressure under which diamonds form. The result is genuine diamond — the same material as a mined stone — grown above ground rather than extracted from the earth.

How does a 3 carat lab grown diamond compare in price to a mined diamond of the same size?+

A lab-grown diamond delivers the same material as a mined diamond of equivalent grade for a small fraction of the price. At three carats, where a mined stone runs deep into five figures, the lab-grown equivalent makes a statement weight attainable without sacrificing the diamond itself.

Are lab grown diamonds certified and graded the same way as mined diamonds?+

Yes. Satéur lab-grown diamonds are graded on the same colour, clarity, cut and carat scale as mined diamonds and ship with IGI certification documenting those grades, exactly as a mined diamond would carry an independent grading report.

Can a lab grown diamond be used in an engagement ring?+

Absolutely. A lab-grown diamond is a real diamond with the same hardness — Mohs 10, the highest of any gemstone — making it ideal for an engagement ring worn every day. It offers genuine diamond presence and durability at a fraction of the mined cost.

What customization options are available for a 3 carat lab grown diamond ring?+

Across the edit you can choose between cuts such as round, cushion, oval and radiant, select solitaire, halo or accented settings, and pick a band in white gold or warm gold tones, all in solid 18K gold.

The Satéur Community

Worn by 100,000 across 150 countries.

Real jewelry. Real lives. Real moments — from Paris to Seoul to Los Angeles.

Enough is the rarest thing The New Diamond Standard^® Enough is the rarest thing The New Diamond Standard^® Enough is the rarest thing The New Diamond Standard^®

Featured In

Vogue Harper’s Bazaar Cosmopolitan Esquire Elle Marie Claire

3 Carat Lab Grown Diamond Ring

Browse by category.

3 Carat Lab Grown Diamond Ring, answered.

Worn by 100,000 across 150 countries.