For more than 16 years, Sidsel has worked behind the scenes of the international diamond world. As a GIA Graduate Gemologist, trained at the Gemological Institute of America, she combines specialist knowledge with years of international experience sourcing exceptional natural diamonds and rare gemstones for private clients and creating bespoke pieces around them.
Her approach has always been personal and highly selective. Sidsel believes the right jewel begins with understanding the person, the occasion and what truly deserves to be remembered — and only then finding the stone.
Her journey into one of the world’s most discreet and traditionally closed industries became the subject of her book, USLEBEN, published by Gyldendal, one of Denmark’s leading publishing houses. Over the years, Sidsel has also contributed her expertise to Danish and international media, television and radio, and today write about the changing diamond and jewellery market.
Sidsel works personally with private clients who value discretion, quality and rarity — whether selecting an exceptional diamond or creating a bespoke piece to mark something meaningful.
Because the most meaningful pieces aren’t for everyone.
Over the years, Sidsel has dedicated much of her time to sharing her knowledge and experience through exclusive masterclasses — offering a rare insight into diamonds, gemstones and the fascinating world behind them.
The Insider is an exclusive circle for collectors, entrepreneurs and families with an interest in rare diamonds, market insights and timeless beauty.
Rare Diamond Opportunities
Market Insights & Global Perspectives
Private Events & The Insider Evenings
By Invitation Only
We don’t simply create jewellery. We create future heirlooms.
At DALBY DIAMONDS, every piece is created with longevity in mind — designed to be worn today, treasured for a lifetime and passed on to the next generation.
That begins with uncompromising quality. From carefully selected diamonds and gemstones to considered design and exceptional craftsmanship, every detail matters.
Created for those who recognise the difference.
“Sidsel’s background as a gemologist makes all the difference. She truly knows what she’s talking about – Her rare expertise and distinguished education set her apart. With a signature blend of global luxury and exquisite craftsmanship, Sidsel creates jewels beyond compare.”
“Great service, very friendly and informative. Made the pressure of buying an engagement ring so much easier.”
“So happy I found Dalby Diamonds! Great communication, my ring arrived faster than expected, quality craftsmanship, and most importantly price compatitive. I live in Australia and ordered the ring online/email. A little nervous committing without actually seeing the item first but Dalby Diamonds rest assured me throughout the process. I am very happy with it. I would 100% recommend them to international buyers.”
“Great service, excellent value for money. My trusted advisor that goes above and beyond when it comes to client service and professionalism.”
Whether you are looking for an engagement ring, a rare diamond or gemstone, or considering a bespoke piece, Sidsel would be delighted to guide you personally.
A consultation is complimentary and entirely without obligation. You can meet Sidsel in person or, if you prefer, arrange a private consultation via WhatsApp or Zoom.
Private appointments · Copenhagen · London · Geneva
Access for selected customers