Orbit No.5 – a diamond ring.

A superb 0.23ct or 0.50ct diamond is orbited by 16 small but perfectly formed versions of itself, with another 24 lining the band itself.

Made to order. Normal delivery time is two weeks.

Choose gold colour

Size Guide


Montluc » ORBIT No.5

Three ways to find your size

Montluc » ORBIT No.5

1. Try-out*

We strongly recommend that you visit a jeweller and measure your ring size. It’s the safest way and at the same time you can compare our specs for benchmark.

Montluc » ORBIT No.5

2. Size-up

If you currently owns a ring that fits just perfect, great! Download and print our size-guide. Then follow a few easy steps to determine your ring size before you place your order.
Note: Download the PDF to desktop before printing.

Download Montluc size-guide

Montluc » ORBIT No.5

3. Convert your size

If you know your size (non-EU) you can easily use our conversion chart to find out which size is your perfect fit. Download it and get going.

Download Montluc size-chart

* We strongly suggest a real try-out at your local jeweller to accurately size up your finger. Then place your order here and be amazed of how much our products spark.

We don’t compare to the very best. We are the benchmark for it.

Diamonds. Diamonds. And…more diamonds.

  • 100% Sourced and made in Europe
  • 100% Exploitation-free
  • 100% Compliant with the highest internationally-recognised standards
  • 100% Guaranteed to blow minds

Love diamonds? Today is your lucky day. Orbit No.5 combines the discreet elegance of our best-selling Halo with the mesmerising pull of the Orbit line. The superb 0.23ct or 0.50ct centrepiece is colourless, internally flawless and triple excellent cut. In other words, an absolute knockout. Floating in an almost invisible setting, it appears far larger than it really is. (But that can remain our little secret…)

The finest of fine detail

Then you have 16 smaller yet perfectly formed diamonds orbiting the centrepiece, with another 24 lining the band itself. The result is irresistibly sparkling. Seriously. And as with our entire collection, Orbit No.5 has been crafted the way high class jewellery should be. Take that subtle air gap between the main diamond and its satellites. This serves to put the full beauty on a pedestal and create ultimate standout.

Creating the Montluc sparkle

The triangular finish to the prongs not only adds to the overall elegance. It is also carefully engineered to keep the diamond securely in place while using the minimum use of gold. This reveals the largest possible surface area to maximise the reflection of light. Every facet of the surrounding diamonds is aligned to reflect light in the same way at the same time. It takes a significant level of skill and knowhow. But when you see the sparkle, you understand that it is well, well worth it.

Montluc diamonds are a cut above.

If you want that ‘Oh wow, I can’t believe how much it sparkles’ factor, it’s the cut you need to look at.

Most diamonds are graded from Poor to Excellent on official GIA (Gemological Institute of America) cut grades. Montluc, by contrast, only ever uses the very finest standard of quality that goes one step further. Two, actually.

Our Triple Excellent cut ensures that every single diamond is impeccably aligned, perfectly balancing the reflection of light and amplifying its radiance.

No exceptions.

Montluc only uses the world’s finest diamonds – in fact, we select only the top 3%. Needless to say, the quality of our gold is equally uncompromising. While most gold rings are cast, Orbit No.5 is sculpted from a solid 18k pd135 gold bar, which is up to three times harder. So it lasts longer, wears better and looks perfect even under the closest inspection.

We don’t compare to the very best. We are the benchmark for it.

Montluc » ORBIT No.5

Diamond grading

For in-depth information on grading diamonds, have a look here.

Once again, the sheer natural beauty of a perfect 0.23 or 0.50 carat diamond is displayed to the max.

Patrick Rosenwald, Team Montluc

If you're not happy, then neither are we.

Satisfaction Guarantee. 100% satisfaction. Or 100% money back.

In the highly unlikely event that your diamond jewellery fails to live up to your expectations, simply return the item to us within 30 days. We will fully reimburse you with the minimum of delay and with no questions asked.


Fitting Guarantee. Try this one for size.

Maybe the ring wasn’t for you or you weren’t totally sure which size to go for. Whatever happened, it isn’t an issue. Send the original ring back and we’ll redeliver your perfect fit, super fast.


The unique Montluc ‘Oh no!’ Guarantee. Because sometimes it just isn’t your day.

Even our exceptional diamond jewellery is no exception to the fact that accidents happen. So if you’re having one of those days that inevitably means you’re going to drop it, crack it, scrape it…you name it…just relax. Return your item along with all detached bits and pieces and we’ll send a brand new replacement. This guarantee is valid for two years from delivery.

If you ever need to activate your Montluc guarantee, please email us at customerservice@montluc.com

Shipping. The journey begins.

A close-up of Montluc packaging with lid closed


Every piece of Montluc diamond jewellery is crafted with artistry, precision and the very highest quality gold and diamonds. Each is made to order, normally it takes two weeks to receive the latest sparkle in your life.

Our prices include global express shipping and full insurance. In the unlikely event your package is lost in transit, we will send out a replacement at no additional cost.


Arriving in style.

Montluc diamond jewellery ships first class and arrives in the style you’re about to become accustomed to.

We have put a lot of thought and effort in making sure that our packaging looks as impressive as the sparkling piece that awaits on the inside. Handmade in Sweden by traditional skilled craftsmen, it is FSC-approved in line with our sustainable, exploitation-free ethos. The enclosed gift card, the golden lettering, the texture, the fabric…each individual element reflects the highest possible quality.

After all, diamond jewellery is always a uniquely special gift. Especially when it’s for you.

Shop with complete confidence

Your quality guarantee

Montluc diamonds above 0.2ct are certified by GIA. The world's leading diamond authority is dedicated to maintaining the highest standards.

Smooth, secure payment

Your payment is as secure as you’d expect from the world’s most trusted payment providers - or simply use a direct bank transfer.

Delivered by the experts

We ship your diamonds using the industry’s global leader for unrivalled end-to-end visibility. Rapid. Reliable. And fully insured.

Satisfaction guaranteed

100% happy or 100% money back. Ring doesn’t fit? We’ll replace it. And our unique ‘Oh no!’ guarantee offers a free one-time fix for accidental damage.

A few words from our ambassadors
— Astrid Blute
— Astrid Blute
Just a quick word to say wow! FedEx have just delivered my order and it was so beautifully boxed and wrapped. It got even better when I opened it and saw my Orbits in real life. I can’t help sneaking a quick glance in every mirror I pass!
— Astrid Blute
— Alexandra Jerselius
— Alexandra Jerselius
Montluc claim to offer the finest diamond jewellery you can buy direct from the maker. I did my research, compared specifications with some of the big brands and now I will never walk into a store again. My Halo arrived in May and both the quality and the value are fantastic. More for less – it’s a no brainer!
— Alexandra Jerselius
— Eva Engelbert
— Eva Engelbert
I wanted to invest in ME. In something that would hold its value even if I enjoy it day after day. So I decided to bring my dream diamond ring to life. Montluc made it an amazing reality with 15 diamonds of the highest gradings possible. It’s a work of art that simply outsparkles everything. Thank you.
— Eva Engelbert
— Filippa Helmersson
— Filippa Helmersson
I purchased two Halo No.1 to complement my existing wedding band. The diamonds sparkle like you wouldn’t believe, which has caused a bit of an issue because next to them my original ring looks sooo dull. I’ll soon be back for an upgrade!
— Filippa Helmersson


Our first collection is on
the way, launching piece by
beautifully crafted piece.

Made with the world’s finest diamonds, each and every item is not just a thing of beauty but an electrifying statement of intent. Don’t worry. You’ll soon get used to all those heads turning, eyes widening, and looks of pure envy.

View the collection