How Custom Moissanite Rings Are Made: The Full Process Explained

Commissioning a custom moissanite ring online follows a clear, repeatable sequence: you submit a brief, approve a CAD rendering, select your stone, watch it cast and set, then receive a quality-checked piece built to your exact specification. The whole process typically spans four to eight weeks from first contact to delivery, depending on design complexity and how many revision rounds the CAD stage requires.

What makes moissanite well-suited to custom work is its physical consistency. Because every stone is lab-grown, cutters can produce unusual shapes and precise dimensions on request, something that is far harder to guarantee with natural stones. That predictability gives jewellers more control over how the finished ring looks against the design file.

What goes into the initial design brief?

The brief is where most of the real decision-making happens, and it is worth taking seriously. You will typically share inspiration images, describe the setting style you have in mind (solitaire, halo, three-stone), and specify your preferred metal: 9ct or 18ct yellow gold, white gold, rose gold, or platinum. Band width, profile, and any engraving ideas all belong here too.

A good brief also covers budget. Knowing your ceiling upfront lets the jeweller steer you toward stone sizes and setting types that are achievable, rather than presenting a design you then have to scale back. Studios like Golden Bird Jewels handle custom commissions this way, using the brief to align expectations before any design work begins.

One thing buyers often overlook: ring size. An incorrectly sized custom ring is expensive to resize because the shank may need to be cut and re-soldered, which can disturb pavé stones set along the band. Measure twice before you submit.

How does the CAD design stage work?

Once the brief is agreed and a deposit paid, a designer builds the ring in CAD-CAM software. The output is a set of multi-angle photorealistic renderings that show prong placement, setting height, stone proportions, and band profile in detail. You review these digitally and request changes before any metal is touched.

Most studios send two rounds of CAD edits before production begins, and around 90% of orders reach approval by the second set of renderings. Each revision typically adds two to five working days to the timeline, so clear feedback at the first review saves time. Look closely at prong count and thickness: four prongs give a cleaner look but less stone security than six, and that trade-off is much easier to change at the CAD stage than after casting.

The CAD file also drives the wax pattern used in casting, so any dimensional error in the rendering carries through to the physical ring. This is why reputable makers will not proceed to production until you have signed off the design in writing.

Which moissanite cut and grade should you choose?

Stone selection usually runs alongside or just after the CAD stage, because the cut you choose affects how the setting is engineered. Moissanite is lab-grown silicon carbide with a Mohs hardness of 9.25, which makes it the second-hardest gemstone material after diamond and well-suited to daily wear. Its refractive index of 2.65 to 2.69 produces more fire than a diamond’s 2.42, so the cut has a visible effect on how the stone performs in different lighting.

For custom work, the most relevant choices are:

Shape: Round brilliant is the most forgiving cut to set and tends to show the highest brilliance. Fancy shapes (pear, marquise, oval, emerald, old mine) need more precise prong work to protect their points or corners, but they read as more individual. Golden Bird Jewels carries options like the Dutch Marquise Cut Moissanite and Butterfly Cut Moissanite as loose stones that can be specified into a custom setting.

Colour: Most buyers choose D-E-F (colourless) for white metal settings. Warmer tones (G-I) can look intentional and appealing in yellow or rose gold, where the metal colour masks any body tint.

Carat weight vs. face-up size: Because moissanite is slightly less dense than diamond (specific gravity 3.22 versus 3.52 for diamond), a 1ct moissanite measures about 6.5mm across its table, fractionally wider than a 1ct diamond at the same weight. That small difference matters when you are specifying a setting designed around a particular millimetre diameter.

What happens during casting and setting?

After CAD approval, the design file is used to 3D-print a wax pattern. That pattern is invested in high-grade plaster, kiln-fired to burn out the wax, and then filled with molten metal under centrifugal or vacuum pressure. Once cooled and cleaned, the raw casting is filed, pre-polished, and inspected for porosity or surface defects before the stone goes anywhere near it.

Stone setting is the most skilled hand-operation in the whole process. A setter uses gravers and burnishing tools to push or fold metal prongs securely over the stone’s girdle. For a custom design with unusual geometry, this stage can take several hours on a single ring. Hidden halo settings, where accent stones sit beneath the centre stone’s girdle rather than around it, are particularly labour-intensive because the setter works in a confined space with limited visibility.

After setting, the ring goes through a final polish, then a quality check: stone security is tested by applying light pressure to each prong, the surface finish is inspected under magnification, and dimensions are measured against the approved CAD file. Only after that check does the piece leave the workshop.

The Brief Is Where Custom Rings Are Won or Lost

Every stage of the process flows from the quality of the initial brief. A vague brief produces a CAD that needs multiple rounds of revision, which pushes back the production start and stretches the timeline. A specific brief, with reference images, a confirmed ring size, a chosen metal, and a realistic budget, gives the designer enough to work with on the first pass.

If you are still deciding on stone shape, browsing a store’s existing moissanite jewellery is a practical way to see how different cuts behave in real settings before you commit to a custom order. Looking at finished pieces tells you more about a stone’s face-up appearance than a specification sheet ever will.

Frequently Asked Questions

How long does it take to receive a custom moissanite ring after placing an order?

Production for a custom moissanite ring typically takes six to eight weeks from the point of design approval, though simpler designs in popular metals can be completed closer to four weeks. The CAD revision phase adds time before production even begins, so plan for ten weeks total if you have a firm deadline such as a proposal date.

Can I request an unusual moissanite shape for a custom ring, or am I limited to standard cuts?

You are not limited to standard cuts. Because moissanite is lab-grown, cutters can produce shapes to specific millimetre dimensions on request, including old mine ovals, butterfly cuts, and Dutch marquise outlines. The setting design in the CAD stage is then engineered around the exact stone dimensions, so the two processes work together.

What deposit is typically required to start a custom moissanite ring order?

Most studios ask for a non-refundable design deposit of roughly £50 to £200 to cover the CAD work, followed by a 50% production deposit once you approve the rendering. The design deposit is usually credited against the final price. Because the ring is made to your specification, refunds are generally not available once production begins.

Will a custom moissanite ring look different from the CAD rendering I approved?

The finished ring should match the approved CAD closely, but there are small differences to expect. Hand-finishing and polishing give the metal a depth and warmth that renderings cannot fully capture, and the stone’s fire will look more pronounced under real light than in a digital image. Structural dimensions, prong count, and setting height should match the file precisely.

Is moissanite durable enough for a ring worn every day?

Yes. With a Mohs hardness of 9.25, moissanite is the second-hardest gemstone used in jewellery, behind only diamond. It also lacks a cleavage plane, which means it resists chipping better than many other stones. For a ring worn daily, moissanite is one of the more practical centre-stone choices available.