Lab grown diamonds are real diamonds, chemically and physically identical to natural ones. We use CVD diamonds (Chemical Vapor Deposition): a small diamond seed grows into a diamond in a vacuum chamber. That follows the process underground, in a fraction of the time.

We work without middlemen and buy directly from our producers, so margins drop out of the chain. For lab grown diamonds, supply and demand set the price, and growing a diamond costs less than mining. Together that is a price difference of up to 90%.

Every diamond is selected for VVS and VS clarity, colour D to F, and a Triple Excellent cut.

Print the A4 template at 100% and check the printed 10 cm ruler. Cut out the ring strip or wrist strip. For a ring, fold the strip into a loop around your finger and read the size where the lines meet. For a bracelet, measure the widest part of your wrist and add 1 cm. Measure a ring at the end of the day. If you are unsure, try the pieces in the boutique.

Yes. All our diamonds are conflict-free. We work with certified producers who follow ethical and social standards.

Our CVD diamonds are grown without large-scale mining. They are grown at processing and certification centres, so less transport is needed. The growing facilities run on a mix of conventional power and solar energy. We offset the remaining emissions from production and shipping with a tree through Trees for All for every order.

Every piece comes with a certificate from an independent laboratory: origin, colour, clarity, cut, the diamond’s carat weight and the weight of the gold. Diamonds from 1 carat also receive an individual IGI certificate.

In-stock jewellery ships within 1 working day, discreetly and insured, with track and trace. Pieces that are not in stock, and custom work, are made in about 3–4 weeks and then shipped with track and trace as well.

Yes, within 30 days of delivery, if it is unworn and in its original condition. Return shipping is at your expense. Contact us for a return label.

Yes. Every piece comes in our jewellery box, with a light, a velvet lining, and an extra gift box with a ribbon.

Clean it with lukewarm water, a mild soap and a soft brush, then dry it with a lint-free cloth. Avoid harsh chemicals and keep the piece in its box. In the boutique we clean it for you, free of charge.

Yes. You add engraving in the bag. Engraving takes 3–5 working days and is then shipped insured. For your own design you can send a request.

Email info@vondel.com, call +31 20 210 1719, or message us on WhatsApp. Amsterdam is open daily from 11:00 to 17:45, Den Bosch Tuesday to Saturday. Walk-ins are welcome. You can also book an advice appointment in advance.