Custom Diamond Paintings: Round vs Square Drill Guide
- 3 days ago
- 6 min read

There's something almost magical about taking a diamond painting kit and sitting down to craft it. Holding up a tiny diamond, locating the right spot on the canvas and pressing the diamond down. Repeat. Piece after piece, the full image x slowly reveals itself. It's like you're discovering a little secret with each finished line of the masterpiece. However, when many artists get to the point of the decision-making, they hesitate: what type of diamond (drill) should they use — round or square?
This is a major decision. The drill type that is chosen will have an impact on your finished custom diamond painting, on the amount of time required to complete it, and most importantly, on your overall enjoyment of the process. Each of the two has their pros and crafters have loved both for quite different reasons. Let's analyze it all in a way that really makes sense.
Understanding the Diamond Painting Drills at a Deeper Level
It is worth helping yourself know the real drills before the decision is made, and also why they play such a big role in custom diamond painting.
Drills are little, glistening resin bits which the artist is attaching one by one onto the pre-printed canvas so that the image is formed — be it a family portrait, a pet photo, a landscape, or any design that you personally choose. Every drill matches a symbol on the canvas, so that when all are placed, the complete picture is revealed.
Market-wise, two shapes are offered: round drills and square drills. Both shapes also come in what is called the 5D format, which means each side of a drill has 5 facets. It is these facets which reflect light and give the painting that beautiful sparkly effect which the diamond paintings are famous for.
All over the world, diamond painting has turned into a craft industry worth millions of dollars, with hundreds of thousands of kits being sold every year in North America, Europe, and Asia. Custom diamond paintings — where a personal photo forms the basis of the image — have become especially popular as thoughtful handmade gifts.
Round drills — the perfect blend of comfort and creativity
Round drills are shaped like a circle which is a little bulging on the top, and extremely easy to handle. In fact, the round is the first type of drill that was introduced when diamond painting started becoming popular, and to date, it remains one of the most preferred types among beginners.
Why are round drills so comfortable for newbies?
Thanks to their rounded edges, round drills do not require highly accurate alignment. Even if you place them a bit tilted on the canvas, they will still appear almost perfect when viewed from a normal distance. Such a lenient characteristic definitely makes the whole crafting experience a bit more relaxed and fun, especially during prolonged sessions.
There will inevitably be some tiny gaps left in between each round drill as circles cannot be arranged without leaving some spaces. Some crafters see this as a disadvantage, but many others feel it imparts the final work a gentler, more textured look — almost like the picture is radiating rather than printed.
Round drills are usually advised in the following cases:
A new person is embarking on their very first diamond painting project
The size of the canvas is massive and hence speed is essential
The artwork is going to be placed in a well-lit spot as round drills scatter light all around resulting in a stunning sparkle
Either kids or elderly persons are the ones involved as the whole placing process is kind on hands and eyes
One thing to mention — round drills, at times, are called 3D drills in the older kit descriptions, however, these days both round and square drills come under the 5D label.
Square Drills — Made for the Precision Lovers
Square drills are shaped like a cube with flat sides and sharp corners. When aligned properly on the canvas, the edges fit into each other so tightly that no space is visible at all. So you end up with a very dense, fullycovered canvas which looks more like a mosaic tile artwork than a painted canvas.
How Square Drills Help Achieve a More Refined End Product?
The major benefit of square drills is that they result in a cleaner picture. As no spaces are left between the drills, even very minute details can be depicted with greater precision, for example, the curve of an eyebrow, the outline of a petal, or the fur texture of a pet.
For custom diamond paintings based on portraits or zoomed-in photographs, square drills are generally regarded as the better option.
There is also a minor but really fulfilling aspect of square drill crafting. When one row of drills is fixed and their edges fit together simply, a quiet clicking sound comes out. Several crafters have talked about this as one of the most satisfying aspects of the entire process.
However, square drills need more patience and a more stable hand. If the drills are not aligned properly, then they are more obvious than when round drills are used, and it may take extra time to fix them even in the middle of the project. Usually a pair of tweezers is kept handy to help in straightening individual pieces whenever.
Square drills are particularly suitable when:
The person diamond painting is familiar with the basics of the diamond painting
The image to be painted is a detailed or realistic one based on a personal photo
The priority is a gap free, high-quality and professional looking product
The artwork will be framed and displayed for a long time, or will be a gift
Comparing Both Drill Types at a Glance
Feature | Round Drill | Square Drill |
Shape | Circular, domed | Flat-edged, four corners |
Gap between drills | Small natural gap | No gap, fully sealed |
Difficulty level | Easy for all ages | Better for experienced crafters |
Finished look | Soft, sparkly, glowing | Sharp, mosaic-like, detailed |
Speed of completion | Generally faster | Takes more time |
Best image type | Landscapes, patterns, large designs | Portraits, close-ups, fine detail |
Light reflection | Scatters light in many directions | Reflects light from one angle |
Making the Final Choice for Your Custom Diamond Painting
There's no one-size-fits-all answer here that applies to every single person or project. The perfect drill type will be the one that fits your comfort level, your design preference, and the type of experience you want to have while crafting.
If having a relaxed and fun time crafting is the main aim, then round drills are the way to go. Also, they fit to the designs that consist mainly of large areas with broad color blocks. Another reason to choose the round drill is, if the diamond painting is given to someone as a first-time introduction to the craft.
On the other hand, if you require a really detailed final image, if you like doing your craft work in a careful and deliberate way, or if you are making the painting as a special gift that will be framed and displayed for a long time, then square drills will be the better choice.
Whichever you decide on, the process of making a custom diamond painting — from a photo that literally means something to you — will be a very special experience, one that most other crafts don't offer. It's slow and intentional and has a wonderfully meditative quality to it.
A Few Helpful Tips Before You Begin
It is always a good practice to keep, extra drills in separate labeled boxes so that they do not get mixed up
Performing the work under good lighting will help in reducing eye strain
Employ a multi-placer pen when filling large areas of the same color quickly
After the painting is done, use a diamond painting sealer to keep dust off of it
Conclusion
Thus, round and square drills can both be used to create a custom diamond painting that you would be proud to hang on your wall and show off to every visitor.
The distinction lies in the process — one is simple and forgiving, the other is directed and boasts a different kind of reward.
Pick what fits your style of creation the best. Afterwards, start the work — the finest diamond painting is always the one that has actually been completed.

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