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Our 8 Diamond Guarantees - Royal Coster Diamonds
Our 8 Diamond Guarantees
Royal Coster Diamonds is the best choice for a reason. Not only does our long and rich history tells you that you can trust your jewelry with us. But Royal Coster also wants to provide you with certainty in every area when you purchase something as valuable as a diamond. Therefore we’ve created our 8 diamond guarantees. #1 More than 180 years of craftsmanship Our company was founded in 1840. Since then we created the most beautiful jewelry and polished some of the most valuable diamonds ever. With over 180 years of craftsmanship, you can certainly trust us with your jewelry as well. #2 Lifetime diamond upgrades We love to see a diamond ring passed on for generations. Therefore we reimburse 100% of the price you paid when you bought the ring if you want to upgrade the diamond in it. #3 Personal and honest advice Diamonds come in different shapes, sizes, colors, and quality. To select the perfect diamond that fits your personal taste We have more than 150 diamond consultants who offer customized advice in over 35 languages. #4 Knowledge is everything One of the most important diamond guarantees is transparency regarding diamond knowledge. We are well aware that purchasing diamond jewelry is a serious matter. In order to let you make an informed decision, we give you a thorough insight into the 4 C’s of diamond valuation. At Royal Coster, we want you to get the best value for your money. That is also why we provide (free) guided tours to learn everything about diamonds. #5 Only the finest quality diamonds Our diamond polishers are the best in the business. They have a passion for perfection and extraordinary craftsmanship. Therefore, they turn every rough diamond into a beautiful piece of jewelry that lasts for centuries. #6 Straight from the source We have the largest stock of diamonds in Europe. We get our rough diamonds straight from the source, so no middleman is involved. That’s why we can offer you the best price for your diamonds. #7 Honest and responsible diamonds We trace all our purchased diamonds directly back to their source. This makes sure that we stay far away from conflict or ‘blood’ diamonds. #8 Only the highest standard of Diamond certification We have certifications for all of our diamonds such as the HRD, IGI, GIA or Royal Coster. Need more affirmation than these diamond guarantees? Discover our stunning Royal 201 collection and see why we have the most beautiful diamond jewelry!
Our VIP Service - Royal Coster Diamonds
Our VIP Service
Our diamond consultants are highly trained and experienced experts in the field of diamond jewelry. This goes beyond "trends" or "style". But means we can give honest and sound advice which diamond fits which occasion. Largest collection of unset diamonds in Europe The consultants have access to the largest collection of unset diamonds in Europe. If you are looking for a large or unique diamond, we probably have it in stock right here. Our country managers can deliver it directly to you wherever you are in the world. Discreet and personal We have several V.I.P rooms available with their own discreet entry. We have welcomed many VIP’s here and although we are very proud of their ongoing business we will never disclose who they are unless explicitly discussed otherwise. One-stop shopping Because we are a diamond polishing factory we are a one-stop shopping location. From rough diamond to crown jewel; Royal Coster offers everything discretely and efficiently. A Royal treatment Looking to purchase diamonds in Amsterdam? Contact our diamond consultants and we will arrange for limousine service from the airport. Our personal consultants can arrange for everything else you might need, while staying in Amsterdam, as well. Our country managers speak your language Besides our diamond consultants, we have country managers available 24/7 for each part of the world. They can come to you and show you our diamond jewelry or help you select the perfect piece for any occasion. Contact us to learn more and experience The Royal service we have been known for by our clients for more than 180 years.
Care of diamond products - Royal Coster Diamonds
Care of diamond products
Diamonds last a lifetime, but sometimes an accident can happen where the diamond can be damaged. To avoid this, here are some tips for caring for diamond products to keep your jewelry sparkling forever. 1. Handle with care Hold a piece of jewelry by most of the metal, not by the setting or the diamond. Make sure not to wear it during work that could endanger it. Diamond is the hardest material on earth, but it can still attract dirt or even flake. So make sure you always treat your diamond with care. 2. Scratches Happen A diamond can only be set in max. 18 carat gold. Gold that is too soft or too hard will not hold a diamond sufficiently. However, this means that the gold is soft enough to be scratched. But don't worry, a professional jeweler can easily clean your ring and remove the scratches. At Royal Coster Diamonds, we clean the jewelry you purchased from us free of charge. 3. No chemicals! There are many chemicals in everyday products that can affect your diamond piece. This is especially the case with rings. So take them off when you use hairspray, do the dishes or take a shower. This is how your diamond stays bright and shiny for a long time. 4. How do you clean it? When a diamond starts to lose some sparkle, it's time to clean it. Soak it in a bath of water and ammonia (4/5 water; 1/5 ammonia) but no more than 10 minutes, and it will come out sparkling and clean. Use a cloth to dry instead of paper or blow dry with cold air. Of course we can also clean your jewelry for you free of charge.