A guide to help you choose your engagement ring diamond shape
At Skydiamond every lab grown diamond we create begins in the clouds — born from carbon we remove from the atmosphere, powered by sun, wind, and rain. Crafted in our Sky Lab in Stroud, Gloucestershire, these are the only lab grown diamonds made in the UK.
Here are the Skydiamond cuts, redefined for a new era of the world's first carbon negative and ethical man made diamonds.
Diamond shapes
When thinking about your chosen shape, there is no right answer. This is a personal choice and should be explored as such. Plus, you can find the brilliance or quality you desire in any option.
What’s the Difference Between Diamond Shape and Diamond Cut?
Though often confused, shape refers to the diamond’s outline (e.g. round, oval, emerald), while cut refers to the quality of its proportions and facet arrangement — which determine how beautifully the diamond reflects light.
At Skydiamond, each stone is expertly cut to maximise brilliance and integrity, no matter its shape.
Which Diamond Shape Looks the Biggest?
Oval, marquise, and pear-shaped diamonds tend to appear larger than others of the same carat weight due to their elongated silhouettes. These shapes maximise surface area and draw the eye along the finger, creating the illusion of size and elegance.
What’s the Most Popular Diamond Shape?
The round brilliant remains the most iconic and sought-after shape — loved for its symmetry, timeless appeal, and exceptional sparkle. That said, modern couples are increasingly drawn to ovals, cushions, and emeralds for their unique personality and refined style.
What Diamond Shape Best Suits My Style?
- Timeless & classic → Round brilliant or oval
- Vintage-inspired → Emerald, Asscher, or cushion
- Modern & bold → Princess, radiant, or pear
- Minimalist elegance → Emerald or oval
If you’re unsure, our team is here to help you explore styles, try on shapes, or create something bespoke. Our team are here to help.
1. Round Brilliant Cut
The most beloved of all cuts, our round brilliant is made for those who admire light in its purest form. A classic, carbon-negative lab grown diamond ring, made in the UK for a new kind of forever.
2. Oval Cut
The oval cut is for the quietly bold, sharing the same brilliance as a round cut diamond. Though, its elongated shape creates the illusion of greater size, maximising carat weight with a large surface area that catches light with graceful brilliance.
3. Emerald Cut
Clean lines and step-cut symmetry, the emerald cut is one of the oldest and most architectural diamond shapes. Its long, linear facets draw light deep into the stone, creating a quiet, captivating depth.
4. Asscher Cut
The Asscher cut evokes the glamour of another era when it popularised during the 20's. With symmetrical facets and bold depth, it’s a diamond cut for those wanting to make a statement and hark back to Art Deco Precision.
5. Meteoric Cut
Unique to Skydiamond, the Meteoric cut draws its name and design from the sky. Asymmetric and angular, no two are the same — just like the stories they represent. For those seeking something rare in the realm of lab grown diamonds, this custom diamond cut is a cosmic one-off.
6. Marquise Cut
With its distinctive “navette” shape — long, narrow, and elegantly tapered — the marquise cut is designed to captivate. Its extended silhouette appears larger than its carat weight, making it the ideal choice for those looking to maximise the appearance of their Skydiamond's carat weight.
7. Pear Cut
Also known as a teardrop cut, the pear-shaped diamond artfully combines a round diamond’s sparkle with a marquise’s dramatic elongation. Its unique silhouette is romantic and elegant, offering an alternative to popular Oval and Round Brilliant cuts.
8. Cushion Cut
Its pillow-like shape and rounded corners offer durability for everyday wear, while its fire rivals the most vivid cuts. A contemporary take on the romance of the antique Old Mine Cut.
9. Princess Cut
The princess cut is the only true square among diamond shapes. Invented in 1979, its strong lines and chevron-shaped facets reflect light with striking intensity, making it one of the most sought-after styles for modern engagement rings. With a large, open table and pointed corners, it’s a shape that favours clarity and cut.
Why Diamond Cuts Matter
Each Skydiamond is a symbol of what’s possible when beauty meets responsibility. From custom jewellery pieces to lab grown diamond engagement rings, we design with integrity, cut with purpose, and craft everything at our carbon-negative lab in Stroud, UK.
So whether you choose a round brilliant or an Emerald shape, you’re not just wearing a diamond — you’re wearing a promise.
