Our diamonds
Lab-grown, ethically brilliant
Every Thia piece is set with genuine lab-grown diamonds — the same carbon structure, the same brilliance, a lighter footprint.
What is a lab-grown diamond?
Lab-grown diamonds are created in advanced laboratories that mimic the natural process. They are genuine diamonds, composed of the same carbon crystal structure as mined stones, with the same hardness, fire and sparkle.
Because they are grown rather than mined, they arrive without the environmental and ethical concerns associated with mined diamonds — and they offer exceptional value, so you can choose a larger or higher-quality stone for your budget.
The Thia cut
Our signature Thia cut is designed to bring out the maximum sparkle and fire in every stone. Each facet is placed with precision to create a dazzling play of light, and every diamond is checked at each stage — from selection to final polish.
Specifications on every piece
Each product page lists the metal, the diamond cut and — where applicable — the total carat weight, colour and clarity grades and certification of the stones. If a detail you need is not listed, ask us before ordering and we will confirm it in writing.
Caring for your jewellery
- Clean regularly with a soft cloth and mild soap in lukewarm water; rinse and pat dry.
- Avoid harsh chemicals, chlorine and abrasive cleaners.
- Remove jewellery before swimming, exercise and sleep.
- Store each piece separately in its pouch or box so stones do not scratch one another.