Michael and Adi Koren — Founders of Grown Lab Diamond, inside their Antwerp boutique

Our Story

Meet Michael &
Adi Koren

We are Michael Koren and Adi Koren, with over 15 years of expertise in precious metals, diamonds and fine jewellery. Drawing on that experience, we decided to open our own boutique — together with a team of trusted partners who share our values.

Everyone is welcome at our Antwerp atelier to buy or sell gold, silver and diamonds — with honest advice, a personal service, and trust as the foundation of every conversation. Based at Gallery Astrid in the heart of Europe's diamond capital, we bring certified expertise and a genuinely human approach to every client.

15+Years of Expertise
5,011Google Reviews
★ 5.0Score
◈ Certified Diamond Expert ◈ Antwerp Diamond District ◈ TVA BE0720809473

Find Your Perfect Style

Engagement Ring Styles

Solitaire engagement ring
Solitaire
Sidestones engagement ring
Sidestones
Halo engagement ring
Halo
Three-stone engagement ring
Three-Stone
Toi et Moi engagement ring
Toi Et Moi
Vintage engagement ring
Vintage
Pavé engagement ring
Pavé
Eternity ring
Eternity
Bezel set engagement ring
Bezel Set

The Cut Guide

Diamond Cuts

Round brilliant cut diamond
Round
Pear cut diamond
Pear
Oval cut diamond
Oval
Emerald cut diamond
Emerald
Cushion cut diamond
Cushion
Princess cut diamond
Princess
Radiant cut diamond
Radiant
Asscher cut diamond
Asscher
Marquise cut diamond
Marquise
Private bespoke jewellery consultation at Grown Lab Diamond Antwerp

Bespoke Creation

Your Vision,
Crafted in Diamonds

From the very first sketch to the finished masterpiece — we design and create entirely unique jewellery pieces, made exclusively for you, using certified lab-grown diamonds.

Begin Your Bespoke Journey →
01

Private Consultation

We begin with a private in-boutique or virtual consultation to understand your vision, your style, your budget — and the story you want your piece to tell. No two conversations are alike.

02

Design & 3D Rendering

Our in-house designer translates your ideas into detailed sketches and photorealistic 3D renderings. You review and refine at every stage until every curve and prong is exactly right.

03

Diamond Selection

We source the ideal certified lab-grown diamond — GIA or IGI graded — matched precisely to your design in cut, colour, clarity and carat. You approve every stone before it enters your piece.

04

Master Crafting & Delivery

Antwerp's finest goldsmiths bring your piece to life by hand. Delivered with its grading certificate, an insurance valuation document, and a signature luxury gift box.

Master Antwerp goldsmith setting a lab-grown diamond by hand
◇

Engagement Rings

Design the ring that tells your unique love story. Any cut, any metal, any style — a one-of-a-kind piece that is entirely yours.

◈

Wedding Bands

Matching or contrasting bands crafted to complement your engagement ring or stand beautifully and boldly on their own.

❧

Fine Jewellery

Pendants, earrings, bracelets, necklaces — bespoke pieces for every milestone, every occasion, and every person you love.

⟡

Heritage Redesign

Transform a cherished heirloom into a contemporary masterpiece while honouring its sentimental history and meaning.

Ready to Create Something Extraordinary?

Every bespoke journey begins with a single conversation. Book your private consultation — in-boutique in Antwerp, or virtually, wherever in the world you are.

Book a Private Consultation

Send a Message

We'd Love to Hear from You

Fill in the form below and one of our diamond specialists will get back to you within one business day.

Our Antwerp Atelier

Visit Us in Person

Try rings, meet our gemmologists, and hold your future diamond in your hands — no appointment necessary.

◆

Address

Koningin Astridplein 31 bus 43
2018 Antwerpen, Belgium

Telephone

+32 490 25 90 05

Email

Repair Services

Jewellery repair & resizing available in-store

Get Directions

Opening Hours

Sunday – Thursday11:00 – 18:00
Friday11:00 – 14:30
SaturdayClosed
★★★★★
5.0
5,011 Google reviews
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Reviews

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