Real diamonds

Lab-grown diamonds have the same chemical composition, crystal structure, hardness, and optical properties as mined diamonds. The difference is origin: they are grown in controlled laboratory conditions rather than extracted from the earth.

How they are grown

Modern growers use HPHT or CVD technology to create diamond crystal. The rough diamond is then cut, polished, graded, and set using the same craft standards as mined diamonds.

Certification

Qualifying centre stones are supplied with IGI certification showing the 4Cs: cut, colour, clarity, and carat weight. The certificate gives buyers an independent reference for the stone they receive.

Why Lumiere chooses lab-grown

Lab-grown diamonds support traceability, reduce the uncertainty associated with traditional mining, and make exceptional diamond jewelry more accessible without compromising beauty.

Choosing your stone

For engagement rings, our concierge can help compare carat size, cut, metal colour and setting style so the final piece feels balanced on the hand.