Understanding CAD Images vs the Finished Engagement Ring: What to Expect
When you're designing your own bespoke engagement ring, one of the first things you'll probably see is a CAD image, a computer-generated design of your future ring. But these can be a bit confusing. Why does it look so chunky? Will the final ring really look like this? Let's go through the usual questions, so you know exactly what to expect.
The short answer is yes, your finished ring will look like the CAD, but finer and more refined. The CAD is deliberately built a little chunkier to allow for the metal that's removed during casting and polishing, so the real ring ends up more delicate than the image suggests.
What is CAD and Why Do Jewellers Use It?
CAD (Computer-Aided Design) Explained
CAD stands for "Computer-Aided Design," and it's basically software we use to create precise digital models of jewellery before we make it. Think of it as the blueprint of your engagement ring. It lets us visualise the design clearly and accurately before we go ahead with making anything.
Illustrative CAD designs are realistic-looking images that show roughly what your ring should look like when it's finished. You might sometimes see them on jewellery websites instead of product photography and not even realise.

Key Differences Between CAD Images and the Finished Engagement Ring
Why CAD Images Look Bulkier and Sharper
You might notice CAD images look quite sharp and a bit chunky. There's no need to worry. The reason is that the digital model has to account for processes like casting and polishing that remove metal. This means your actual ring will end up much finer and more delicate than the CAD image suggests.
Shrinkage During Casting and the Importance of Extra Metal
During casting, your ring naturally shrinks by around 3%, so we build a little extra into the CAD design. This is completely normal and ensures your final ring isn't too thin or weak after the casting stage.
Refining Claws: From Chunky to Elegant
People often notice the claws that hold diamonds or gemstones look large, square and flat in CAD images. Again, this is intentional. We start with more metal than needed to securely hold your stones in place, then carefully refine them into elegant, delicate claws at the finishing stage.
Polishing and Finishing: The Final Refinement
Polishing is the moment your ring really comes to life. It removes excess metal, smooths edges, and gives your ring the shiny finish you're looking forward to. So remember, your CAD image is the "before," not the "after."
CAD Image vs the finished Engagement Ring

Common Pitfalls of Using CAD for Bespoke Jewellery
Technical Knowledge and Practical Jewellery Design
Just because someone can create a beautiful CAD design doesn't automatically mean it will translate well into a wearable piece. It's essential to work with someone who understands jewellery-making from start to finish, not just the digital bit.
Production Realities vs Digital Designs
Not everything that looks amazing on a computer screen works in real life. Some designs might look brilliant in CAD but end up being impractical or uncomfortable. I always make sure to talk it through with my clients so that they understand the process, and to avoid disappointment.
Misleading Perspectives: Zoomed-in CAD Images
Another common confusion comes from viewing CAD designs zoomed-in at huge magnifications. If your ring looks bulky, step back and ask to see the image closer to actual size. Perspective makes a big difference and it's often one of the biggest things to remember when looking at CAD images on your screen. A zoomed in detail on the side of a bespoke engagement ring will probably be a couple of millimetres in reality.
The CAD Image VS Finished Pink Diamond Ring

How to Effectively Use CAD in Your Bespoke Engagement Ring Design
Start with Sketches and Concept Development
I always recommend starting your design process with sketches and mood boards. This helps get the basics right before jumping into CAD. It ensures we're all on the same page about what you really want your ring to look like.
Collaborate with Experienced Jewellery Designers and Goldsmiths
Working closely with someone experienced in both CAD and traditional jewellery-making helps bridge the gap between digital images and the physical ring. This collaboration means fewer mistakes and a smoother process overall.
Questions to Ask Your Designer about CAD Designs
To ensure your CAD design matches your vision, ask these questions:
- Has the CAD designer understood my brief correctly?
- Does the design look balanced and practical when viewed at actual size?
- Have you made similar rings before, and can I see examples?

Benefits of Combining CAD with Traditional Jewellery Techniques
Precision Stone Setting and Detailed Design
CAD allows incredible precision, especially for intricate details and stone setting. When combined with traditional techniques, it gives you the best of both worlds, accuracy plus artistry.
Avoiding Common Mistakes Through Professional Guidance
Working with a skilled jewellery designer means they'll spot potential issues early on. My experience means I understand the limitations and possibilities of each design, preventing costly and frustrating mistakes.
How CAD Can Save Time and Money in Jewellery Making
CAD can streamline the process by quickly creating accurate prototypes, reducing labour time, and minimising costly revisions. Done right, it saves you money while delivering the ring you really want.
Final Thoughts: Balancing Technology with Expert Craftsmanship
When CAD is the Right Choice for Your Bespoke Ring
CAD is fantastic, but it isn't always necessary for every design. It's brilliant for detailed, intricate rings and for precise stone placements. Sometimes though, simpler designs work better with traditional methods, so ask your jeweller what's best for your idea.
Seeing Real-Life Examples to Set Accurate Expectations
Ultimately, nothing beats seeing real examples. Ask your jeweller for photos or actual samples of finished rings alongside their original CAD designs like the image below. This helps you set realistic expectations and reassures you that your ring will be exactly how you imagined it.
The CAD image looks much chunkier around the scalloped edge than on the finished ring. This is because the extra metal is worked to secure the diamonds and then polished to a refined edge. You can also notice that the diamonds look different, as CAD diamonds can't quite live up to the real thing. So if you're ever disappointed with your CAD images, just remember the finished thing will look much more refined.

Getting the chance to design your own engagement ring is exciting. By understanding how CAD fits into the process, you can relax knowing your final ring will look even better than that initial chunky CAD image suggests.
I'd love to help you design your own bespoke piece of jewellery. Book a consultation today.
CAD Engagement Ring FAQs
Will my finished ring look like the CAD image?
Yes, but finer. The finished ring follows the CAD design closely, but it ends up more delicate and refined, because the CAD is built slightly chunkier to allow for the metal removed during casting and polishing.
Why does my CAD image look so chunky?
The digital model has to account for casting and polishing, which both remove metal. We also build in a little extra to allow for around 3% shrinkage during casting, and we start the claws larger so they can be refined down at the finishing stage. All of this means the CAD looks bulkier than the real ring will be.
How accurate are CAD images?
Very accurate as a design blueprint, but they're a guide to the shape and layout rather than a perfect preview of the finished look. The proportions are intentionally a little heavier, and CAD diamonds never quite capture the sparkle of the real stone. Viewing the image at actual size, rather than zoomed in, gives you a much truer sense of it.
Why do the diamonds look different in CAD?
CAD diamonds are a digital representation and can't replicate the way a real diamond reflects light. So the stones in your CAD will look flatter and less lively than the finished ring, where the real diamonds come to life.
Should I be worried if I don't love my CAD image?
Try not to judge the ring on the CAD alone. It's the "before," not the "after." If something looks too bulky, ask to see it at actual size and ask to see photos of finished rings next to their original CAD designs. That comparison usually puts any worries to rest.
Still have questions? Just ask.
If you've been reading this to work something out, and you've still got questions, message me on WhatsApp. You don't need to book a consultation or be ready to buy. A lot of people message me right at the start, when they're just trying to understand their options, and that's exactly what I'm here for. You'll be talking to me, the person who designs your jewellery, not a sales team. Ask me anything.