Asscher cut diamond - the square diamond
If you are less interested in intense sparkle and prefer a clear, structured elegance in your jewelry, then the Asscher cut will suit you. It is considered one of the noblest and most sophisticated cuts in the world of diamonds, as it combines the elegance of the emerald cut with the sparkling depth of a brilliant-cut diamond. The Asscher Cut, often referred to as the "Square Emerald Cut", combines a clear, geometric appearance with its square shape, cut corners and impressive optical depth, with historical significance. It stands for timeless class, precise craftsmanship and an unmistakable play of light. This diamond cut is not just a visual choice, but a conscious decision for style, purity and architectural aesthetics. With its perfect proportions, it fits perfectly in engagement rings, fine diamond jewelry or as a solitaire, discreet yet radiant.
The most important things at a glance
Characteristics of the sparkling Asscher-cut diamond
We reveal what makes the cut and how it is created.
Learn moreThe history and origin of the Asscher diamond - a sparkling piece of jewelry with a long tradition
Find out more about the origin of the cut.
Learn moreAdvantages and disadvantages of the square diamond
Find out whether this cut suits you by weighing up the pros and cons.
Learn more
Characteristics of the sparkling Asscher-cut diamond
The Asscher Cut diamond is square with beveled corners and a precisely laid table that leads deep into the pavilion. Typically, an Asscher diamond has 58 or 74 facets, which are arranged in several steps (step cuts). This creates an extraordinary optical depth, reminiscent of an "endless staircase" and a play of light that captures light from every angle and reproduces it in uniform reflections. This creates the characteristic "hall of mirrors" effect. Compared to the emerald cut, an asscher cut diamond appears more square and shows more brilliance and sparkle, while the emerald cut appears flatter and calmer. This cut particularly emphasizes the purity of the stone, whereby inclusions or irregularities are more easily visible due to the large, open table, which is why a high clarity is recommended. Its rectangular diamond body with ideal symmetry, graduated facets and excellent polish creates a breathtakingly clear appearance. The crown of the stone is higher than most other diamond cuts, which further enhances the depth and brilliance.
production
There are various steps in the creation of this perfectly cut diamond:
Step 1: Autopsy of the rough diamond
First, the rough diamond is carefully examined. The cutter analyzes the natural crystal structure, the position of the inclusions and the shape of the stone to determine the optimum cutting angle and material preservation. The rough diamond is then aligned so that its crystal structure matches the planned facets.
Step 2: Proportions
When aligning, the proportions of the stone are crucial; it is usually an almost perfect square with a length-to-width ratio of around 1.00.
Step 3: Molding
In this step, the rough diamond is shaped into a square basic form by splitting or sawing. This creates the basis for the subsequent asscher cut.
Step 4: Faceting
In the next phase, the cutter first removes large facets from the crown and pavilion, which are arranged in parallel on several levels, hence the name step cut. Smaller facets are then added precisely to create the typical "hall of mirrors" effect. Finally, the corners are slightly beveled and the symmetry perfected, giving the diamond its characteristic, almost octagonal shape.
Step 5: Polishing
Finally, all facets are polished to a high gloss. This brings out the exceptional clarity and purity of the stone, while maximizing the surface shine (luster).
Step 6: Quality control
After polishing, the finished Asscher Cut diamond is checked for cut quality, symmetry, clarity and proportion. It then receives a corresponding diamond certificate, for example from GIA, HRD or IGI.
The modern version, the Royal Asscher Cut, has 74 facets instead of 58.
This reflects the light even more intensely.
The history and origin of the Asscher diamond - a sparkling piece of jewelry with a long tradition
The history of the Asscher Cut begins in 1902, when Dutch gem cutters Joseph and Abraham Asscher from the Royal Asscher Diamond Company in Amsterdam envisioned a new type of square cut with beveled corners. Their father, Isaac Joseph Asscher, had already founded the company in 1854, and over the decades it developed into one of the world's leading diamond cutting companies. The Asscher brothers made clever use of the rough diamond geometry of the time (e.g. octahedral crystal shapes) by developing a cut shape that allowed both maximum material yield and a striking appearance. Their creation was square in outline but with flattened corners, a design between the rectangular emerald cut and more classical shapes. This shape was successfully patented and became the first patented diamond cut in history.
In the following years, the Asscher Cut gained popularity, particularly in the Art Deco era (1920s to 1930s). The design, with its clean lines, geometric structure and distinctive crown and table, was a perfect match for the architectural jewelry aesthetics of the time.
A historic highlight was the involvement of the Asscher family in cutting the world-famous Cullinan Diamond in 1908. Weighing 3,106 carats, the rough diamond was the largest ever found at the time. Joseph Asscher was entrusted with the task of precisely splitting and cutting the stone, a challenge that demanded enormous precision.
In the course of the Second World War, the company suffered drastic setbacks. The defeat of the Netherlands and the Nazi occupation led to the confiscation of the factory, the arrest of many family members and the destruction of production equipment. Only a few members returned and the company had to be rebuilt after the war.
In 2001, the Asscher family introduced the modernized version, the "Royal Asscher Cut". This Asscher cut with 74 facets was based on the original design of the Asscher Cut and created an even more intense lighting effect.
Today, the Asscher Cut is considered a classic among diamond cuts: It combines unique cut quality, historical significance and modern aesthetics. Anyone who chooses an Asscher cut diamond is thus drawing on over a century of cutting tradition combined with elegant clarity and precise proportions.
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Advantages and disadvantages of the square diamond
Asscher diamonds are particularly popular with lovers of vintage-inspired jewelry. With its precise facets and symmetrical shape, it creates a hypnotic play of light that is less sparkling than a brilliant cut, but creates a brilliance of incredible depth and structure. The cut emphasizes the purity and colour quality of the diamond, making it ideal for high-quality stones with excellent polish and color quality. In addition, the Asscher Cut diamond has a timeless and elegant look thanks to its square shape and clean lines.
As previously mentioned, the large table and transparent step cuts mean that inclusions and impurities are more easily visible, especially in low clarity diamonds. It is therefore recommended to look for diamond certificates and at least VS2 clarity when buying. In terms of color, you should also tend to choose a higher quality grade (e.g. G or better), as the Asscher cut highlights color nuances more than more brilliant cuts.
Conclusion: The royal Asscher
The Asscher Cut is a masterpiece of diamond cutting art that combines classic design, historical significance and timeless elegance. It combines the clear lines of the emerald cut with a more intense sparkle and incomparable symmetry. If you are looking for a diamond that impresses with its precision, depth and unique light reflections, the Asscher cut is the perfect choice.
The Asscher cut is a square stepped cut with cut-off corners and a deep, clear structure reminiscent of a small reverb-of-mirrors effect.
It shows strong clarity, geometric lines and a striking depth effect - less sparkle, but elegant, clear light reflections.
Very high purity (as inclusions are more easily visible), good symmetry and a balanced length-to-width ratio for a harmonious square shape.
The corners are somewhat more susceptible than on a round brilliant, but a good setting - usually with protective prongs - minimizes the risk.
Ideal for engagement rings and Art Deco-inspired designs that emphasize clean lines, vintage flair and architectural elegance.
They are often set in prong settings, bezel settings or halo rings to emphasize the clear lines and hold the stone securely.
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