From the Maison

Round Lab Grown Diamond Necklace

Round-cut, real lab-grown diamonds in solid 18K gold — IGI-certified brilliance for a fraction of the mined price.

29 PiecesFrom $928Free Worldwide Delivery

The Round Necklace Edit

A round lab grown diamond necklace is a pendant or chain set with a round-cut, lab-grown diamond — a real diamond created in a laboratory rather than mined from the earth.

The Satéur Destinée Diamond Necklace™ anchors this edit: a round-cut, real, IGI-certified lab-grown diamond for a fraction of the mined price. Every necklace ships with free delivery, a lifetime guarantee, and arrives nested in the signature Satéur box, ready to gift or to keep. This is the round brilliant — the most light-returning cut there is — set close to the throat where it catches every turn of the head.

The metal is solid 18K gold, not plating and not a finish. Each piece is cast in 18K white gold or 18K yellow gold and the centre stone is an independently IGI-certified lab-grown diamond, so the grading you read is the grading you wear. Solid gold holds its weight, its colour, and its value over a lifetime of daily wear.

A lab-grown diamond is a real diamond — identical in carbon structure, optical fire, and durability to one pulled from the ground. It registers a perfect 10 on the Mohs scale, the hardest material there is, so it resists scratching against everything but another diamond. Our centre stones are selected in the D–E colour range with Excellent cut grades and VS clarity, the specification that reads icy-white and eye-clean against the skin.

The grid below ranges across round lab grown diamond necklaces in solitaire pendant and station settings, in carat weights scaled for everyday and statement wear, in both white gold and yellow gold, on chains cut for collarbone and longer drops. Whether you want a single round diamond pendant or a graduated diamond tennis necklace, the round-cut centre stays the constant. The grid below shows every piece.

Explore related lab-grown diamond styles: Heart Lab Grown Diamond Necklace, Oval Lab Grown Diamond Necklace, Lab Grown Diamond Necklace. 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.

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Questions

Round Lab Grown Diamond Necklace, answered.

What is a round lab grown diamond necklace?+

It is a pendant or chain necklace set with a round-cut, lab-grown diamond — a real, IGI-certified diamond created in a laboratory rather than mined. The round brilliant cut is the most light-returning of all diamond shapes, which is why it reads so brightly against the throat.

What is the difference between a lab-grown diamond and a mined diamond?+

Chemically, optically, and physically there is none — a lab-grown diamond is a real diamond with the same carbon crystal structure, the same 10 on the Mohs scale, and the same fire. The only difference is origin: one is grown in a controlled lab, the other excavated from the earth. The lab-grown stone simply costs a fraction of the mined price for the same look and grading.

How do I choose the right carat weight for a round diamond necklace?+

For everyday wear close to the throat, smaller carat weights sit comfortably and read elegantly under a collar. For a statement pendant or a gift meant to be noticed, scale up the centre stone. Because the round brilliant returns so much light, even a modest carat weight appears bright and full on the chain.

What metal options are available for lab diamond necklaces?+

Each necklace is cast in solid 18K gold — choose 18K white gold for a cool, contemporary setting that lets the diamond read icy-white, or 18K yellow gold for warmth against the skin. It is solid gold throughout, never plated or a surface finish.

How is a lab-grown diamond certified?+

Every centre stone is independently graded and certified by IGI (the International Gemological Institute), which documents the diamond's carat, colour, clarity, and cut. The grading you read on the certificate is the grading you wear — we set D–E colour, Excellent cut, VS clarity.

What chain length should I choose for a diamond pendant?+

A shorter chain sits the pendant just below the collarbone for a classic, framing line; a longer chain drops the diamond lower for a more elongated effect. Consider your neckline and how you layer — the grid offers chain lengths cut for both collarbone and longer drops.

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