THIS SEASON’S FAVORITES
Trending Now in Fine Jewelry
COLLECTION HIGHLIGHTS
Chic, Bold, Forever Yours
Eternity
Endless rows of diamonds that symbolize forever. Perfect for stacking and celebrating every milestone.
Heart
Romantic heart-shaped designs with real diamonds. Made to mark the moments that matter most.
Colored Gemstone
Timeless gold settings with vivid gemstones and diamonds. Classic color accents that never go out of style.
Insects & Animals
Playful designs inspired by butterflies, bees and other creatures. Detailed, sparkling pieces with real character.
Flex
Soft, flexible designs that move with you. Effortless comfort combined with full diamond shine.
Cutsom designs & requests
We can make almost any design you have in mind.
With our in-house goldsmith and our 3d modeling team we can make your custom design come to life.
Show our professionals in store your design and we will look through our design catalogue for a model that matches your preference or we create the ring from scratch! After that we will choose a stone together within your budget that we will set with our in-house goldsmiths. Just make the down-payment and your ring is on it's way! This process takes 1-4 weeks depending on stock.
Come visit our store in Amsterdam or contact us on the phone or by E-mail for any questions.
The Perfect Ring for the Question
MADE TO SAY “YES”
Explore our natural diamond engagement rings for every love story.
Our Google Reviews
Excellent service and a good selection. I found what I've been wanting for a long time. I'll definitely be back again.
Julia
Bought a earring for my wife very nice quality and good Service
Adnane M.
An exceptional place in terms of service and manners. Friendliness and professionalism are equally present here. A highly recommended place.
Salva P.
Koh-I-Noor Diamonds
From rough to refined, since 1980.
Who we are:
Four generations of craftsmanship. In the heart of Amsterdam.
Koh-I-Noor, an Amsterdam family business with deep roots in the Jordaan neighborhood, located on the iconic Muntplein. Since 1980, we have been cutting, designing, and selling loose natural diamonds and handmade jewelry.
What began with the passion of founder Dirk, who learned the craft of diamond cutting at the age of 17, has now grown into a fully-fledged jewelry house with four generations of expertise. With us, you're not just buying a piece of jewelry—you're investing in a story, craftsmanship, and lasting beauty.
Whether you order online or visit our store, we ensure a personal and reliable experience. Handmade with confidence, style, passion, craftsmanship, your size, love. Genuine diamonds, fairly cut. Our diamonds are 100% natural and conflict-free according to the Kimberley Process. Certified, inspected, and transparent. Sustainable gold, timeless design. We work exclusively with real gold: yellow, white, or rose gold that doesn't tarnish. Combine this with modern or classic styles—for a piece of jewelry that will last for generations. Personal service.
Whether you shop through our website or visit us at Muntplein, you'll receive the same personal attention, honest advice, and expertise. That's our promise. Our mission is to make the beauty and power of real diamonds accessible to everyone—with sustainable materials, transparent pricing, and genuine service. Starting in our own diamond cutting facility, we now bring the entire process together: from rough diamond to sparkling final result. Because a diamond isn't a trend. It's a story. And it starts with us.
What our customers say.
Jack:
Skilled staff, pleasant and friendly approach, ultimately finding an engagement ring relatively quickly. My girlfriend (now fiancé!) is also very happy with it.
Caroline:
I previously visited the physical store in Amsterdam, and now I had a ring custom-made online with the same attention and quality. Emails are answered very quickly and with a personal touch. Kudos!
Albert:
Fast and free delivery! They delivered it personally because I lived near Amsterdam; they were reliable people. My wife is also very happy, highly recommended!
EXPERIENCE
A Diamond House in the Heart of Amsterdam
Step inside our family-run diamond factory, where four generations of cutters and goldsmiths craft jewelry above the very shop where it’s sold. Every visit combines live craftsmanship, expert guidance and a warm Amsterdam welcome.
Annual event
An Evening with Diamonds & Stories
Once a year we open our doors after hours to celebrate new creations, share the stories behind our stones and meet our guests in person. It’s a relaxed Amsterdam gathering with sparkling drinks, sparkling people and even more sparkling diamonds.
