The Art Deco icon.
The Asscher cut is the original square step-cut diamond, created in 1902 by master cutter Joseph Asscher in Amsterdam. Its concentric square facets draw the eye deep into the stone, producing a mesmerising "endless tunnel" optical effect that no other shape can replicate. After a resurgence in the early 2000s, it has become the connoisseur's choice for Art Deco-inspired jewellery.
Every Asscher cut diamond in our collection is GIA, HRD or IGI certified and individually selected for exceptional clarity and symmetry. Its deeply cropped corners and high crown create the distinctive octagonal face-up appearance — a square diamond with unmistakable vintage character and architectural
Facets
MOST Popular
ASSCHER
Square Facets
What makes it special
Key Characteristics
Why the Asscher cut is the diamond connoisseur's choice for architectural beauty and vintage sophistication.
Endless Tunnel Effect
The concentric square facets create a unique "windmill" or "hall of mirrors" optical illusion — drawing the eye deep into the centre of the stone. No other shape produces this hypnotic depth.
Architectural Precision
With its perfectly square proportions (1.00–1.05 ratio) and deeply cut corners, the Asscher has a geometric precision that appeals to lovers of Art Deco design and clean architectural lines.
Showcases Clarity
Like the emerald cut, the Asscher's open step-cut facets act as windows into the stone. This makes clarity especially important — but it also means a high-clarity Asscher looks breathtakingly transparent.
Rich Heritage
Created by the same family that cleaved the legendary 3,106-carat Cullinan Diamond. The Asscher name carries over a century of cutting heritage — a diamond shape with genuine provenance.
Our Collection
Asscher Cut Diamonds
Hand-picked certified princess cut diamonds from our current stock — at prices up to 75% below retail.
Expert Advice
Why Choose an Asscher Cut Diamond?
Hypnotic Optical Depth
The Asscher's concentric step-cut facets create a mesmerising "windmill" pattern that pulls the eye deep into the stone. When you look straight down into a well-cut Asscher, you see an endless series of reflections — an effect no brilliant-cut shape can produce.
Art Deco Authenticity
If you love the Art Deco aesthetic — geometric patterns, vintage glamour, Gatsby-era sophistication — the Asscher is the only diamond that was actually born in that era. It's not a modern shape made to look vintage; it is vintage, dating back to 1902 Amsterdam.
Exceptional Transparency
The open step-cut facets let you see straight through the diamond, showcasing its purity. A high-clarity Asscher (VS1 or better) has a crystal-clear transparency that feels almost like looking through water — an effect that many collectors prize above raw sparkle.
Strong Value Proposition
Asscher cut diamonds typically cost 25–35% less than a comparable round brilliant. Lower demand keeps prices accessible, while the shape's distinctive character ensures you own something truly special — not a compromise, but a deliberate choice.
Legendary Provenance
The Asscher family of Amsterdam wasn't just any diamond cutter — they were entrusted with cleaving the 3,106-carat Cullinan Diamond, the largest gem-quality rough ever found. Choosing an Asscher connects you to one of the diamond industry's most storied names.
Explore More
Other Diamond Shapes
Not sure if an asscher cut diamond 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.
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COMMON Questions
Asscher Cut Diamond FAQ
Everything you need to know about buying an asscher cut diamond.
About Asscher Cut Diamonds
What is the difference between an Asscher and an emerald cut?
Both are step-cut diamonds, but the Asscher is square (ratio 1.00–1.05) while the emerald is rectangular (ratio 1.30–1.60). The Asscher also has a higher crown and deeper pavilion, which creates its signature concentric "windmill" pattern and more pronounced light-and-dark contrast. Think of the Asscher as the emerald cut's square sibling with added depth.
What clarity grade do I need for an Asscher?
Clarity is very important for the Asscher. Its open step-cut facets act like windows — inclusions are more visible than in brilliant-cut shapes. We recommend VS2 or higher for a clean appearance, and VS1 or VVS2 for the breathtaking transparency the Asscher is known for. Read our clarity guide.
Does the Asscher sparkle like a round brilliant?
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.