Why choose us? Our customers say...
First Time Acquiring a Landmark Diamond? We’re Here To Help
The journey to acquiring a 4ct diamond engagement ring is a remarkable one. Our most senior specialists in Hatton Garden are dedicated to providing a discreet and comprehensive consultation, guiding you through the fine points of selecting a diamond of this importance and ensuring the final design is a true masterpiece.
Hatton Garden Craftsmanship
Quality You Can Trust
Every 4 carat diamond ring in our collection is entrusted only to our master artisans, whose skill and experience are paramount in handling stones of this calibre.
The precision required to set a 4 carat diamond is immense, and each piece undergoes a meticulous quality assurance process to guarantee its perfection and security.
We stand behind these exceptional creations with our most comprehensive aftercare services, including professional cleaning, maintenance, resizing, and a lifetime warranty, ensuring your investment remains a source of joy for generations.
Understanding 4 Carat Diamonds
A 4.00 carat engagement ring is a jewel of true distinction, a rare and magnificent treasure that commands attention and admiration. This is a diamond size that makes an unequivocal statement of success and devotion, offering an awe-inspiring spectacle of light and fire. A 4 carat diamond represents a significant leap into the world of high jewellery, a choice for those who desire nothing less than the extraordinary.
While smaller diamonds possess their own beauty, a 4-carat diamond exists in a class of its own. Its sheer size allows for an unparalleled display of brilliance and scintillation, creating a dazzling performance that is visible from across the room.
The advent of superior-quality, large lab-grown diamonds has made the dream of owning a 4 carat masterpiece more attainable, presenting the same breathtaking impact and beauty at a more considered price point.
WHY CHOOSE US? OUR CUSTOMERS SAY...
MOUZA was excellent from start to…
MOUZA was excellent from start to finish.
I purchased an engagement ring for my Fiancé..
MIRO made the ring in less than two weeks as i had to travel abroad, and the ring is absolutely Stunning.
Big thanks to the team and Miro who was extremely helpful during our online appointment.
We are both extremely pleased and we will definitely be back to get our Wedding bands.
Absolutely wonderful service from Miro…
Absolutely wonderful service from Miro and Mouza team.
All the team were helpful and I didn’t feel pressured during our consultation
Having an appointment really helped going through our design requirements and choosing the right lab diamond for my price range.
The ring came on time and it looked absolutely amazing.
Thank you again for all the team, I will be definitely buy my wedding bands from Mouza.
At first I was skeptical about ordering…
At first I was skeptical about ordering my ring online.
However, Miro was amazing throughout the process of making the perfect ring, he listened to what we wanted and was able to find us the perfect lab diamond for my engagement ring.
He was always helpful and answered all our questions professionally.
We also now have a replica of my ring that I can travel with without any worry.
Couldn’t recommend Mouza and Miro more.
Popular Ring Settings
Timeless Designs That Never Date
Your engagement ring should look as beautiful in 20 years as it does today.
That’s why our collection focuses on classic and timeless designs that have proven their staying power. These rings look stunning from every angle and are built to withstand a lifetime of wear.
Browse our favourite engagement ring categories:
Diamond Selection
Certified & Responsibly Sourced
Choose from our extensive range of natural diamonds and lab created diamonds, each accompanied by detailed GIA or IGI certificates and high-quality imagery.
Whether your preference is for a 4 carat traditional natural diamond engagement ring or a modern lab grown diamond, we source only from ethical suppliers with full traceability.
Become An Expert
How to Shop for Lab Diamond Engagement Rings in Hatton Garden: Your Complete Guide
Celebrities Who Are Redefining Engagement Ring Trends: A Hatton Garden Expert's Perspective
Lab-Grown Engagement Ring Appointments in Hatton Garden – What to Expect
Your Questions Answered: Everything You Need to Know About 4ct Diamond Rings
What truly defines a 4ct diamond ring?
A 4ct diamond ring features a centre stone weighing four full carats (equivalent to 800 milligrams). This is a diamond of significant rarity and substance. Its visual impact is breathtaking, and its size allows for an exceptional display of the cutter's art. The dimensions will vary based on the shape and cut quality, but every 4-carat diamond is a major statement.
What is the investment for a 4 carat diamond ring in the UK?
The investment for a 4 carat engagement ring in the UK is substantial and reflects the rarity of such stones. Prices can begin around £50,000 and can readily exceed £250,000 or more, contingent on the diamond's specific quality grades (Cut, Colour, and Clarity). A high-quality, large lab-grown 4-carat diamond will be a more accessible, yet still significant, investment.
Is a 4 carat diamond considered ostentatious?
A 4 carat diamond is undeniably a bold and luxurious statement. Whether it is perceived as ostentatious depends entirely on the wearer's personal style and the design of the ring. For a confident individual who appreciates high jewellery, a 4-carat stone is the ultimate expression of personal style. A minimalist setting can lend it an air of modern sophistication, while a more elaborate design will embrace its glamorous potential.
How important are Colour and Clarity for a 4 carat diamond?
At the 4ct size, Colour and Clarity grades are critically important. The large table of the diamond acts as a window, making any inclusions or colour tints much more apparent than in a smaller stone. To ensure a visually stunning and valuable diamond, we typically recommend a Colour grade of G or higher and a Clarity grade of VS1 or better. Investing in higher quality grades is essential to protect the beauty and value of a diamond this significant.
What are the most secure and beautiful settings for a 4
carat diamond?
Securing a 4-carat diamond is paramount. Platinum is often recommended for its strength and durability. A six-prong solitaire setting offers superior protection over a four-prong design. A well-crafted bezel setting provides the most security and a sleek, modern look. The choice of setting should balance security with aesthetics to ensure the diamond is both safe and beautifully showcased.
Should a 4 carat diamond be considered a long-term financial asset?
While the primary value of an engagement ring is its sentimental significance, a large, high-quality natural diamond is an exceptionally rare tangible asset. These stones are sought after globally and have historically been a reliable store of value, often passed down as legacy heirlooms. While we advise against purchasing for purely speculative purposes, the enduring value of a rare, natural 4-carat diamond is an undeniable part of its allure.





