meet Sidsel

A private approach to diamonds

For more than 15 years, Sidsel has worked behind the scenes of the international diamond world — 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. Over the years, Sidsel has also contributed her expertise to Danish and international media, television and radio, and today writes about the changing diamond and jewellery market.

Sidsel works with a limited number of private clients who value discretion, quality and rarity over the ordinary.

Because the most meaningful pieces are rarely the ones everyone else can have.

Our philosophy

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.

What our clients say

“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.”

- T. Maria, client at Dalby Diamonds

“Great service, very friendly and informative. Made the pressure of buying an engagement ring so much easier.”

- Phil, client at Dalby Diamonds

“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.”

- Ariani, client at Dalby Diamonds

“Great service, excellent value for money. My trusted advisor that goes above and beyond when it comes to client service and professionalism.”

- Nikolaj, client at Dalby Diamonds

Uniquely yours

Bespoke jewellery created around you.

At DALBY DIAMONDS, every bespoke piece begins with you. From an engagement ring to a reimagined heirloom or a jewel with personal meaning, each creation is entirely individual.

With Sidsel Dalby’s expertise in diamonds, rare gemstones and design, you are personally guided from the first idea to the finished piece, handcrafted by our workshops in London and New York.

Created for those who value something truly their own.

Book a private consultation

Every piece begins with a conversation.

Whether you are looking for an engagement ring, a rare diamond or gemstone, or considering a bespoke piece, Sidsel will guide you personally.

A consultation is complimentary and entirely without obligation. Meet Sidsel in person or arrange a private consultation via WhatsApp or Zoom.

Follow Sidsel on Instagram @dalbydiamonds