Diamond Bank

Diamant Banken is a completely digital platform from Ackumulera AB where you can buy loose certified diamonds and gemstones – or create your own ring online with our Ring Builder . We make it easy, safe and transparent to find the right stone based on your wishes for shape, quality and budget.

With us you will find a large selection of natural and lab-grown diamonds as well as carefully selected gemstones. You choose whether you want to buy a stone separately – or combine it with one of our ring settings in 18k gold or platinum. Everything is done online, with full certification and clear information about each stone.

Design your ring with our Ring Builder

Want to create a unique engagement or wedding ring from scratch? With our Ring Builder it's easy. Start with a setting – such as solitaire, halo or side stones – in any metal. Then choose a diamond or gemstone directly from our current range .

The system visually guides you through the process and shows you what the ring will look like. You control the carat, color, clarity, cut quality, price and other characteristics – a smooth and informative way to create something personal.

Our history

Diamant Banken was founded to make it easier, more transparent and safer to buy certified diamonds online. Our platform helps you make informed decisions – without hidden conditions – with clear product information and guiding content.

What makes us unique?

  • Completely online: A modern shopping experience without physical limitations.
  • Large selection: Certified diamonds and gemstones with real-time data in the online store.
  • Combine yourself: Buy loose diamond or create your ring in Ring Builder .
  • Full transparency: Clear prices, measurements in millimeters, 360° view and certificates from GIA, IGI, HRD and others.
  • Secure deliveries: Tracked and insured shipments.
  • Safe purchase: 14-day right of withdrawal according to law (does not apply to custom-made jewelry); fast support via live chat and info@diamantbanken.com .
  • Education & Guidance: Read our guides:

Ethics and responsibility

All our diamonds are certified by internationally recognized laboratories such as GIA, IGI, HRD, EGL and AGS. We follow the principles of the Kimberley Process to ensure that natural diamonds are conflict-free.

We prioritize sustainability and transparency in the supply chain and collaborate with stakeholders who share our values around ethics and social responsibility.

Our vision & mission

Vision: To become Scandinavia's leading destination for certified diamonds, gemstones and personalized rings - completely online.

Mission: To make it easy, safe and informative to find the right diamond or gemstone – whether you want to buy a loose stone or design your own ring.

Ready to find the right diamond or create your own ring?

Explore our current range or start designing your ring here . Do you have any questions? Contact us in the live chat or via info@diamantbanken.com – we will be happy to help you.