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Lab-Grown Diamond Jewelry

Jewelry set with laboratory-grown diamonds, chemically and optically identical to mined diamonds.

Lab-Grown

Lab-grown diamonds are chemically and optically the same material as mined stones, graded on the same scales. At a fixed budget they generally buy more size, more clarity, or both.

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How Lab-Grown Diamonds Are Made

The stones in this selection are grown by chemical vapor deposition. A thin diamond seed is placed in a sealed chamber, a carbon-rich gas is introduced and energized into a plasma, and carbon atoms settle onto the seed layer by layer until a rough crystal has formed. It is then cut and polished exactly as a mined rough would be.

The result is diamond in every measurable sense: the same crystal lattice, the same 10 on the Mohs hardness scale, the same refractive index and dispersion. Standard diamond testers read it as diamond because it is diamond. Distinguishing lab-grown from mined requires specialist equipment that reads growth patterns and trace elements, which is what grading laboratories use, and every reputable lab-grown stone is laser-inscribed and reported as laboratory-grown.

They are graded on the same color and clarity scales as mined stones, so the grades are directly comparable. The meaningful difference is commercial rather than physical: lab-grown material costs substantially less per carat and, unlike mined diamonds, has been falling in wholesale price as global growing capacity has increased. That makes it excellent value to wear and a poor instrument to store value in.

Further reading: Natural vs Lab-Grown Diamonds, How to Choose a Diamond: the 4Cs, How to Choose an Engagement Ring.

Buying with confidence

Flexible payment options may be available at checkout, subject to the provider’s approval. See financing options.

Before you choose: Natural vs Lab-Grown Diamonds, The 4Cs, How to Choose an Engagement Ring.

14k White Gold Diamond Engagement Ring with Shared Prong Diamond Accents

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Payments are encrypted and processed by a PCI-DSS compliant provider. IMPERVORA never stores your card details. Orders are dispatched from Phoenix, Arizona within 1-2 business days, and shipping is calculated at checkout so you see the exact cost before you pay. Returns are accepted within 30 days of delivery on unworn pieces in their original packaging; custom, engraved and personalised pieces, pierced earrings and final sale items are excluded.

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