Looking for a lab - grown diamond jewellery, but afraid people will know it's lab-grown?

For most people, yes. A lab-grown diamond looks the same as a natural one but costs far less, so you can choose a larger or higher-quality stone for the same budget. One thing to know: lab-grown diamonds generally have a lower resale value than natural diamonds, so they suit you best when you are buying to wear and enjoy, rather than as an investment.

Yes. A lab-grown diamond is a real diamond. It has the same carbon crystal structure, the same chemical composition, and the same hardness and sparkle as a natural diamond. The only difference is where it was formed: in a controlled lab instead of deep in the earth. It is not a cubic zirconia or a moissanite.

Yes. Lab-grown diamonds are exactly as hard as natural diamonds (10 on the Mohs scale), so they resist scratches and daily wear in the same way. With normal care, a lab-grown diamond will last a lifetime.

Not by eye, and not with a standard jeweller's loupe. Telling the two apart needs specialised laboratory equipment that detects subtle growth patterns and trace elements. That is why certification matters: Qahira pieces are certified lab-grown, so you always know exactly what you own.