Oval Diamonds
The elongating diamond shape — flattering brilliance and the illusion of greater size in every certified stone.
The flattering elongation.
The oval diamond is the fastest-growing shape in popularity, prized for its elongated silhouette that flatters the finger and creates the illusion of greater size. Developed in the 1960s by Lazare Kaplan, this modified brilliant cut combines the sparkle of a round with a distinctly elegant, elongated outline.
Every oval diamond in our collection is GIA, HRD or IGI certified and individually selected for superior light performance and balanced proportions. With no sharp corners to protect, the oval is both durable and versatile — looking stunning in every setting style from solitaires to east-west designs.
Facets
MOST Popular
Created
Silhouette
What makes it special
Key Characteristics
Why the oval diamond has become one of the fastest-growing choices for engagement rings and fine jewellery.
Flattering Elongation
The elongated shape creates the illusion of longer, more slender fingers — a universally flattering effect no round diamond can match.
Contemporary Geometry
As a modified brilliant cut with 56 facets, the oval delivers intense brilliance and fire comparable to the round — from an unmistakably elegant outline.
Excellent Value
An oval has a larger face-up surface area than a round diamond of the same carat weight — giving you more visual impact per carat.
Durable Shape
With no sharp corners or points, the oval is less prone to chipping than princess, marquise or pear shapes — making it a practical everyday choice.
Our Collection
Oval Cut Diamonds
Hand-picked certified oval cut diamonds from our current stock — at prices up to 75% below retail.
Expert Advice
Why Choose an Oval Diamond?
The Most Flattering Shape
The elongated outline of the oval creates a slenderising effect on the hand and finger. It's widely regarded by jewellers and stylists as the most universally flattering diamond shape for engagement rings.
Larger Face-Up Appearance
An oval diamond has approximately 10% more surface area than a round of the same carat weight. This means it looks visibly larger on the finger — offering exceptional perceived size for your budget.
Lower Price Per Carat
Oval diamonds typically cost 20–30% less than a comparable round brilliant. Combined with their larger face-up size, ovals deliver some of the best value in the diamond world — without compromising on sparkle.
Uniquely Versatile
Ovals look equally stunning in classic north-south settings, trendy east-west orientations, three-stone designs and halo settings. No other shape offers this range of creative setting options while maintaining a timeless feel.
Brilliant-Cut Sparkle
As a modified brilliant cut, the oval delivers the same intense brilliance and fire as a round diamond. Its 56 facets produce a dazzling light show from every angle — with the bonus of an elegant elongated silhouette.
Explore More
Other Diamond Shapes
Not sure if an oval cut is right for you? Explore our complete range of certified diamond shapes
Pear
A teardrop silhouette combining the best of round and marquise cuts.
Round Brilliant
Princess
Heart
Marquise
Diamond education
How to Choose Your Perfect Diamond
Selecting a certified loose diamond is a personal journey. Every stone is unique, and the right choice depends on a balance of the four fundamental quality factors — known as the 4 C's of diamond
Use our search tool above to filter by cut, colour, clarity and carat weight. Compare certificates, review 360° imagery, and find the stone that matches your taste and budget. Not sure where to start? Our experts are here to help.
Diamond Cut
Diamond Colour
Diamond Clarity
Diamond Carat
COMMON Questions
Oval Diamond FAQ
Everything you need to know about buying an oval diamond.
About Oval Diamonds
What is the bow-tie effect in oval diamonds?
The bow-tie is a dark shadow that appears across the centre of many oval diamonds, resembling a man's bow-tie. It's caused by light leakage due to the elongated shape. A slight bow-tie is normal and virtually unavoidable, but a heavy, distracting bow-tie significantly reduces beauty. At Diamantwerp, we inspect every oval for minimal bow-tie before adding it to our collection.
What length-to-width ratio is best for oval diamonds?
The classic oval ratio is between 1.35 and 1.50. Ratios below 1.35 appear rounder, while ratios above 1.50 look more elongated. Most buyers prefer 1.40–1.45 as the sweet spot between elegance and proportion. Personal taste plays a big role — always view the diamond face-up before deciding.
Do oval diamonds show colour more than round brilliants?
Slightly. The elongated shape can concentrate colour at the tips, making lower colour grades (J–K) more visible than in a round. We recommend choosing G–H colour or higher for an oval, especially in a white gold or platinum setting. Read our colour guide for details.
Buying from Diamantwerp
Are all your diamonds certified?
Yes — every diamond in our collection is independently certified by GIA (Gemological Institute of America), HRD Antwerp, or IGI (International Gemological Institute). These are the three most respected and internationally recognised diamond grading laboratories. Each certificate provides an objective assessment of the diamond's cut, colour, clarity and carat weight.
How can your prices be so much lower?
We buy directly from cutters and sight-holders in the Antwerp diamond district — cutting out multiple intermediaries. Our low-overhead business model means we pass the savings directly to you. Same certified diamonds, fraction of the price.
Can I view the diamond before buying?
Absolutely. You are welcome to view any diamond by appointment at our office in the Antwerp diamond district (Pelikaanstraat 62). We also offer personal delivery within Belgium and secure insured shipping across Europe. Schedule a viewing.