01 / Dumlu & Sons

From silver to platinum.
From moissanite to diamonds.

Every piece made individually. Every stone certified.
You decide what it becomes.

Explore the collection Certified & made individually

A certificate for every stone

Verified and traceable

Made individually

No mass production, no stock pieces

One personal contact

Direct, without a call centre

02 / Collection

Choose what yours will be made of.

You choose the metal, stone and finish. Send us your configuration and we will reply with a quote, certification details and lead time.

Fancy Vivid necklace with a blue diamond in yellow gold

Fancy Vivid Necklace

1 ct Fancy Vivid · Blue, green or yellow

from €1,190

Round diamond solitaire stud earrings in white gold

Solitaire Stud Earrings

1 ct per ear · four cuts

from €695

Colourless eternity ring with round stones in white gold

Colourless Eternity Ring

Four cuts · moissanite or lab-grown diamond

from €895

Initial pendant A in yellow gold with a green Fancy Vivid accent stone

Initial Pendant

A–Z · eight stones · Fancy Vivid accent

from €400

03 / Selected work

A glimpse into our atelier.

Ring from the Dumlu & Sons atelier
Ring from the Dumlu & Sons atelier
Ring from the Dumlu & Sons atelier
Wedding bands from the Dumlu & Sons atelier
Ring from the Dumlu & Sons atelier
Solitaire ring from the Dumlu & Sons atelier
04 / Our approach

We would never sell anything we would not wear ourselves.

Craft over mass production

Every piece is made individually in our atelier, tailored to your preferences, your budget and your story.

Lab-grown diamonds, with conviction

Physically and optically identical to mined diamonds, with a traceable origin, certification and a clear explanation.

For you, not for an occasion

You do not need a proposal or anniversary to wear something beautiful. There is no right occasion, only yours.

05 / The process

From your idea to the finished piece, in three steps.

01

Getting to know you

A personal phone call about your ideas, your budget and your story.

02

Design

We design your piece with you, refining sketches and details until everything is right.

03

Making

Your piece is made in our atelier, with regular updates through to completion.

06 / Stories

People who trusted us with their story.

One stone, front and centre.

Two rings, one engraving.

The solitaire for the proposal.

07 / Questions

What you may be wondering.

Yes. They are chemically, physically and optically identical to natural diamonds, but grown in a laboratory instead of mined. They are certified, for example by IGI or GIA, and have the same brilliance and hardness.

No. Most clients come to us with a general direction rather than a finished design. The conversation is there to find the right direction together.

Rings start at €950. The final price depends on the metal, stone and complexity. We discuss your budget openly and explain what is realistically possible, with no obligation.

From the first design to completion, we usually allow 4 to 8 weeks, depending on the piece.

No. It is a free, no-obligation introduction, not a sales pitch.

08 / The first step

Write to us. We will get back to you.

No sales pitch and no pressure. We listen to your ideas, answer questions about stones and certificates, and explain how our process works in a personal phone call. Leave your number and we will call you.

Upload inspiration, an existing piece of jewellery or a ring-size reference if it will help our conversation. Maximum 5 photos, up to 8 MB each.

Thank you. We will call you within 1–2 business days on the number provided.