Asscher Cut Lab Grown Diamonds

Why buyers choose the asscher cut

A distinctive look you won’t see on every hand

Its square shape, cropped corners, and “hall-of-mirrors” flash of light give it a bold, architectural presence that’s instantly different from a round or oval diamond.

More diamonds for your budget

Because it’s lab grown, you get the same certified brilliance and hardness as a mined Asscher cut diamond at 30–50% less cost, so you can size up or upgrade clarity within the same budget.

Built to last, not just to look good

Its clipped corners are naturally more chip-resistant than sharp-cornered shapes, making it a genuinely practical choice for daily wear, not just special occasions.

Certified, so there’s no guesswork

Every stone comes independently graded by GIA, IGI, or HRD, confirming exactly what you’re paying for before you commit.

Grown, Not Mined — Same Diamond

A lab grown Asscher cut diamond is created through CVD or HPHT technology, which replicates natural diamond formation in weeks instead of millions of years. It’s then hand-cut into the same facet structure as a mined Asscher. The result: identical hardness, brilliance, and certified grading  at 30–50% less cost.

The 3 Things to Check Before You Buy

Cut & symmetry — the most important factor for this shape. Excellent/Very Good symmetry keeps the step facets aligned. Poor symmetry shows up as a dark “bow-tie” patch.

Clarity: VS1+ — the open facets act like a window, so inclusions show more than in a round or cushion cut.

Colour: G or better — keeps the stone crisp and near-colourless across those broad, flat facets.

What makes our asscher cut lab grown diamonds different

Every Asscher cut lab diamond in the Flawless collection is selected first for cut and symmetry, not just carat weight because on a step cut, precision is what separates a genuinely dazzling stone from a flat, glassy one. Our in-house diamond advisors hand-check proportions, corner sharpness, and facet alignment on every asscher cut stone before it’s added to the collection, and each one arrives with independent certification from GIA, IGI, or HRD, so you know exactly what you’re buying. Handcrafted at our Hatton Garden atelier in London, our lab created asscher cut diamond can be set into a ready-made design or built entirely from scratch through our bespoke ring service — consultations available in-store or virtually.

How to wear an asscher cut diamond

The Asscher’s clean, geometric lines make it one of the more versatile step cuts to style:

Solitaire settings keep the focus entirely on the stone’s own symmetry and are the purest way to show off its hall-of-mirrors effect. Ideal if you love minimalist, architectural jewellery. → Shop Asscher solitaire engagement rings or see our 3.10 carat Asscher solitaire ring, Avian in platinum.

Halo settings surround the Asscher with a ring of smaller diamonds, adding extra sparkle and visually increasing the stone’s face-up size, a smart choice if you’re working with a smaller carat weight. → Shop Asscher cut halo engagement rings or explore our hidden halo Asscher designs for a more subtle sparkle boost.

Vintage and Art Deco-inspired settings, with milgrain detailing or a double band, lean into the Asscher’s 1920s heritage for a genuinely period-accurate look. → Shop our vintage Asscher cut engagement rings, fully customisable with a halo or filigree band.

Three-stone settings, with trapezoid or baguette side stones, frame the Asscher for a balanced, elegant profile. A popular alternative to solitaire for those who still want understated side detail. → Shop three-stone Asscher cut engagement rings.

Bezel and trellis settings protect the stone’s clipped corners from daily knocks, making the Asscher a practical, durable choice for everyday wear despite its statement presence. → See our 2.00 carat Asscher bezel-set yellow gold ring, Avian, or bezel-set Asscher cut stud earrings in rose gold for everyday wear beyond the ring.

Beyond rings: the Asscher’s clean lines also make striking pendants and earrings. Try our 1.48ct solitaire Asscher diamond pendant in a basket setting for everyday elegance.

Because Asscher cuts face-up slightly smaller than their carat weight suggests, we generally recommend sizing up half a carat from what you’d choose in a round or oval, and always viewing the stone in person or on video from multiple angles before you commit. Small differences in depth and symmetry are far more visible on a step cut than on a brilliant.

Best Products & Carat Recommendations

For an engagement ring centre stone, a 1–2 carat lab grown asscher diamond in a halo or solitaire setting is the most popular starting point, offering a confident presence at an accessible price point. If you’re after a bolder statement piece, our 3–5 carat asscher cut diamonds work beautifully as the centrepiece of a three-stone or double-band design, while our 6–10 carat asscher cut lab diamonds are best suited to bespoke, one-of-a-kind commissions.  

If you’ve already decided on your preferred size, browse our dedicated collections by carat weight, including 1 Carat, 2 Carat, 3 Carat and larger lab grown asscher Cut diamonds up to 10 Carats, to compare similar stones more efficiently.

Browse Asscher cut lab grown diamonds by size: 1 carat · 2 carat · 3 carat · 4 carat · 5 carat · 6 carat · 7 carat · 8 carat · 9 carat · 10 carat 

Prefer a finished ring over a loose stone? Explore our Asscher cut engagement rings, our wider lab grown diamond engagement ring collection, or design your own from scratch.