Certificates – Our Guarantee of Authenticity

At Vondel Diamonds, trust is paramount. You don't just buy a diamond with your eyes, but also with the assurance that everything is perfect: from origin to quality. That's why every piece of jewelry comes with an official certificate , so you always know exactly what you're wearing or giving as a gift.

IGI certificate for diamonds from 1.00 ct

For all diamonds 1.00 carat or larger, you will receive an individual certificate from the International Gemological Institute (IGI) . This international institute is one of the world's leading laboratories and independently assesses each diamond for:

• Carat (carat weight)
• Color (color)
• Clarity
• Cut (shape and proportions)

With this document you have official proof of the unique characteristics and value of your diamond.

IGI jewelry certificate for smaller diamonds

For diamonds under 1.00 ct, we provide an IGI jewelry certificate . This certificate describes not only the diamonds used but also the precious metal in which they are set. This gives you a complete overview of the materials and specifications of your jewelry.

Transparency and certainty

Whether you choose a ring, pendant, or bracelet, your purchase always comes with a certificate guaranteeing its authenticity and quality. This allows you to be confident that your jewelry meets Vondel Diamonds' strict selection criteria:

• Lab-grown CVD diamonds of the highest quality (VVS–VS, color D–F, triple excellent).
• 18 carat gold or platinum of solid quality.
• A careful finish by our workshop.

Why this is important

A certificate isn't just proof of authenticity; it's also an investment in peace of mind. It gives you certainty about what you're buying, maintains your jewelry's value, and ensures you can wear your piece with pride—today and for generations to come.

Vondel Diamonds – luxury, backed by certainty.