News & Press

Royal Coster Diamonds has made a unique creation together with flower artist Yusif Khalilov: the most expensive bouquet in the world. This special bouquet, worth €1.001.340, is a mix of art and craftsmanship.  The bouquet has flowers in deep purple and soft cream colors. Khalilov carefully chose calla lilies, spray roses, and other rare flowers. A beautiful detail is the...

Lights, camera, action! Royal Coster Diamonds has had the honor of delivering jewelry to various stars and influencers for the illustrious Cannes Film Festival. Among them are the Miss Universe Runner Up Thảo Nhi Lê and the renowned Dutch entrepreneur Olcay Gulsen. Thảo Nhi Lê, the radiant Miss Universe Runner Up, was wearing a stunning set. She wore a long diamond necklace and earrings with diamond tassels. Additionally, she wore a beautiful full eternity ring with multiple rows as well as a matching bracelet. Olcay Gulsen wore a breathtaking diamond necklace with matching earrings. Both the necklace and the earrings featured pear-shaped diamonds set in a halo setting. About Royal Coster Diamonds Royal Coster Diamonds is one of the world's oldest diamond polishing factories, located in the heart of Amsterdam. Since 1840, Royal Coster Diamonds has been renowned for its craftsmanship, passion for diamonds, extensive stock of loose diamonds, and personalized approach. With experienced master polishers and goldsmiths, Royal Coster Diamonds provides a unique experience for diamond enthusiasts. The company is enthusiastic about sharing its love for the craft and is committed to helping customers find the perfect piece of jewelry.

Diamonds and chocolate turn out to be a great combination! Tout Patisserie and Royal Coster Diamonds are celebrating their skills and passion by working together on two beautiful Easter eggs, both decorated with zirconia. Starting from March 27, you can see the Easter eggs at Royal Coster Diamonds on Paulus Potterstraat 6 in Amsterdam and at Tout Patisserie on Maasstraat 77 in Amsterdam. Easter and chocolate go hand in hand. Royal Coster Diamonds expects many visitors during the Easter weekend and wanted to show them something special. The skilled people from Tout Patisserie and the diamond experts from Royal Coster Diamonds have come together to make an Easter egg that is not only amazing to look at but also shows their love for their craft.Tout Patisserie is well-known in Amsterdam for its macarons, cakes, and chocolates. Led by Chef Patissier Job van Berkel, a team of 16 pastry chefs create wonderful treats. Together with his partner Kim van Berkel, he opened Tout in Amsterdam in 2007. At Tout, craftsmanship is very important. It is a workshop and shop where products are made every day with a lot of love and care. Whether it’s chocolate, fine pastries, or delicious macarons, they are often surprising, sometimes classic, always new, and above all, flavourful. About Royal Coster Diamonds Royal Coster Diamonds is one of the world's oldest diamond polishing factories, located in the heart of Amsterdam. Since 1840, Royal Coster Diamonds has been renowned for its craftsmanship, passion for diamonds, extensive stock of loose diamonds, and personalized approach. With experienced master polishers and goldsmiths, Royal Coster Diamonds provides a unique experience for diamond enthusiasts. The company is enthusiastic about sharing its love for the craft and is committed to helping customers find the perfect piece of jewelry.

"Diamonds are forever" is a well-known expression that emphasizes the eternal value of diamonds. However, for many, diamonds represent more than just their material value; they hold memories and carry emotions. Anita Olijve, originally from Amsterdam but now living in Switzerland, wanted to have her cherished heirloom diamond recut by one of Royal Coster Diamonds' master cutters, Pauline Willemse. The journey began in January 2024 when Anita visited Royal Coster Diamonds with a specific request: to recut a diamond set in a ring passed down from her mother. Anita reminisces, "I can't picture my mother without that ring. My parents owned a bakery in Amsterdam Zuid. Her ring was always on, so it has seen a lot. Likely, it got damaged during her daily bakery cleaning chores." Pauline explains, "The stone was quite damaged indeed. The side had significant flaws, extending all the way to the culet, the diamond's bottom tip. As a result, the diamond had completely lost its shine." Anita continues, "I immediately felt at home at Royal Coster Diamonds during Breakfast at Coster, an initiative organized during the pandemic. It was a warm welcome, with friendly and knowledgeable staff. The tour through the world of diamonds was fascinating. I learned about Pauline and her world record for cutting the smallest diamond. When my mother passed away in 2022 and I inherited the ring, I knew I wanted Pauline to recut it. Her being a female cutter appealed to me greatly. After consulting with Donny Griffioen (responsible for all diamonds at Royal Coster) and Danielle Zondervan, I asked Pauline to cut the diamond. She was immediately enthusiastic and got to work quickly." Pauline shares, "I started by recutting the diamond and then proceeded to polish it. As the diamond's table remained intact, I could begin shaping its roundness right away." Pauline continues, "It took me two working days to cut the stone. It was a demanding task, testing my skills. I aimed to minimize weight loss while maximizing the diamond's potential. Ultimately, the stone went from 52 points (0.5 carat) to 31 points (0.3 carat). Witnessing the stone regain its brilliance was truly rewarding." Anita concludes, "I took the stone back to Switzerland, where a female goldsmith and I collaborated on designing a new ring. The result is completely different from my mother's ring, but I'm sure she would have loved it. It's a stone with a story, and the involvement of four strong women in creating something so beautiful makes it extra special." This story of Anita Olijve and Pauline Willemse shows how an heirloom can be transformed and renewed while the valuable memories remain. It is an ode to craftsmanship, where a diamond is not only a symbol of beauty but also of connection and the stories it carries with it. Are you interested in transforming your cherished heirlooms, just like Anita's diamond? Get in touch with us now to discover how we can recut and renew your diamonds, and let's craft a new chapter in your story together. About Royal Coster Diamonds Royal Coster Diamonds is one of the world's oldest diamond polishing factories, located in the heart of Amsterdam. Since 1840, Royal Coster Diamonds has been renowned for its craftsmanship, passion for diamonds, extensive stock of loose diamonds, and personalized approach. With experienced master polishers and goldsmiths, Royal Coster Diamonds provides a unique experience for diamond enthusiasts. The company is enthusiastic about sharing its love for the craft and is committed to helping customers find the perfect piece of jewelry.

On November 25, 2023, the DNA Gala took place at the RAI Amsterdam. Royal Coster Diamonds participated and offered an auction lot that raised an impressive amount of €6,000. This lot included an exclusive masterclass in diamond cutting. The highest...

Royal Coster Diamonds had the honor of being present at the premiere of "The Real Housewives of Amsterdam." Hella Huizinga, one of the Housewives of Amsterdam, shone at the premiere in a beautiful outfit. She wore a necklace, earrings, and a ring, all made...

On November 20 and 21, 2023, Royal Coster Diamonds hosted two shopping nights to celebrate the renovated boutique. In the past weeks, extensive work has gone into the renovation of the store, giving it a contemporary look while preserving the authentic

Pretty Woman: The Musical has finally arrived in the Netherlands, and Royal Coster Diamonds had the privilege of being at the Premiere! The leading actress, Shanna Slaap, shined on the red carpet adorned with beautiful jewelry from Royal Coster Diamonds....

On the 28th of September, 2023, the Prinses Máxima Center Charity Lustrum Gala took place at the Beurs van Berlage in Amsterdam. Royal Coster Diamonds offered an item for auction that raised an impressive amount of €11,200. During this special evening, a total of €4,523,645 was raised. This collected amount will be used for...