Contact a diamond consultant

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a diamond consultant

Our award winning diamond consultants help you select the best diamond jewellery for any budget.
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The Diamond Masterclass

Are you interested in learning everything there is to know about the craft of diamond polishing? Then the Diamond Masterclass at Royal Coster Diamonds is the perfect experience for you. It is given exclusively by the head of our diamond polishing department who will give you in-depth masterclass that ends –if you do it correctly- with an official Royal Coster Diamonds certificate.

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A tour of the Diamond museum

Once you’ve booked a workshop you will be welcomed by the head of our diamond polishing department, mrs. Willemse. She will first take you on a private tour through the diamond museum where she will explain everything there is to know about the origin of diamonds and she will show you some amazing diamond artifacts.

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The 4 C’s and polishing a diamond yourself

After the tour of the museum you get to sit down at the diamond polishing table where Mrs. Willemse will explain everything about the (protected) craft of diamond polishing and the 4 C’s of diamond valuation.

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Seeing the final result and an official certificate

After the workshop is completed you will be taken to a private diamond showroom where you will see an amazing collection of unset polished diamonds and diamond jewellery.  The masterclass ends with you receiving an official Diamond Masterclass Certificate from Coster Diamonds.

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Cost of the masterclass

The Diamond Masterclass is an highly exclusive workshop for 1 or 2 persons and has a fixed price of € 475,- p.p.  Of course you may keep the diamond you polished. The date and time depends on the availability of Mrs. Willemse, so if you are interested we will forward your request to her directly and she will contact you herself as soon as possible.

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Royal Coster Diamonds