• Enjoy 10% off your first order with code WELCOME
  • Lifetime free cleaning and polishing service
  • Up to 30% discount on selected watches

Terms and conditions apply

  • Valid with the purchase of a loose diamond starting at €1.500.
  • Complimentary 18K gold solitaire ring setting (value from €400).
  • Choice from selected designs within the Coster Creations collection.
  • Not valid in combination with other promotions or discounts.
  • Optional upgrade to exclusive settings with 30% off.
  • Optional upgrade to earrings or a pendant.
  • Registration required via the form below.
  • This offer is valid until September 30, 2025.