Lifetime free cleaning and polishing service
9.4237 reviews

9.4237 reviews

Diamond Academy

Discover the world of Royal Coster Diamonds, where craftsmanship and luxury unite. Since 1840, we have been the experts in diamonds, blending a rich history with a passion for perfection. At our Diamond Academy, you can deepen your knowledge about diamonds and fine jewelry while experiencing centuries-old traditions.

4 C's of Diamond Valuation

It is formed deep inside the earth when carbon atoms are pressed together under high temperature and...

A Guide to Diamond Polishing

Before polishing can start, the diamond is split into two parts by a diamond cleaver. The larger...

Maintain and Clean Your Jewelry

Regular cleaning is crucial for maintaining the brilliance of your diamond. Even the…

The Royal 201

The Royal 201, a worldwide patented diamond cut. Praised for its sparkling…

The Source of Diamonds

Diamonds are the result of crystallized carbon formed under extreme pressure and...

The World of Birthstones

Birthstones have long been revered for their beauty and their unique qualities…

Types of Diamond Jewelry

Solitaire diamond rings are timeless and elegant, showcasing the beauty…

Importance of Jewelry insurance

Protecting your diamond jewelry involves understanding your insurance…

Understanding Watches

The inner workings of a mechanical watch, which give it life, rely on a…