About us

About us
De Ruiter Diamonds is an activity of the De Ruiter family from Klaaswaal, also known from the Goudwisselkantoor in the Netherlands and Belgium. Because many customers are increasingly asking us whether we also have diamonds for engagement rings and jewelers increasingly looking for diamonds for their customers, we have opened our showroom especially for this.

With De Ruiter Diamonds we want to offer our customers and jewelers the opportunity to purchase diamonds together with us in Klaaswaal. We take you into the world of diamonds and are happy to tell you all the ins and outs of this. The special thing about diamonds is that every diamond is unique in size, color, purity and fabric. Are you looking for a suitable frame or do you want something to be designed? You are also very welcome.

Sell ​​Diamonds Online

On our website De Ruiter Diamonds.nl you will find an overview of our diamonds that we have in stock, however if you are looking for a certain diamond that is not online, please contact our customer service. We are happy to help you find this gemstone.

International Diamond Sales

Internationally, there is also an increasing need to buy diamonds online, therefore our website is also available in several languages ​​and we have many diamond lovers around the world.

Diamond prices

De Ruiter Diamonds uses wholesale prices for diamonds and this means that you are much more profitable in price than with a regular jeweler. De Ruiter Diamonds is up to 50% cheaper than a jeweler in your neighborhood and up to 75% cheaper than Diamond Point, Koster Diamonds or Gassan. With us you pay a fair price for your diamond. Compare yourself and come by!


All our diamonds are, if desired, hand-set by our goldsmith and shaped into a beautiful jewel.

Pick up locations:

In cooperation with Goudwisselkantoor.nl it is also possible to view your diamonds at a location in your area. Contact us for the possibilities.

De Ruiter Diamonds

Industrieweg 24 

3286 BW Klaaswaal

The Netherlands

(+31) 0186-746764
[email protected]

Monday t/m Friday 
10:00 - 17.00 uur