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CAD And 3D Prototyping

A rainbow sapphire and diamond ring being worked on the bench at BH Jewelry

Programme

CAD And 3D Prototyping

A jewellery prototype developed in CAD, so a piece can be reproduced exactly by a computer-controlled process instead of rebuilt from scratch.

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The CAD model is the master record. It fixes stone seats, wall thickness and gallery openings, and once it exists the piece can be reproduced using a computer-controlled production process rather than carved again by hand. That is what makes a repeat order genuinely repeatable, and it is also where the cost of a design is decided rather than discovered.

Stage By Stage

CAD And 3D Prototyping In 6 Steps

Reference

Anything that shows intent.

A sketch, a photograph, a vector file or an existing piece.

Working Drawing

Dimensions before geometry.

Stone sizes, finished dimensions and metal weight marked on a scaled drawing.

3D Model

The decisions that cost money.

Seats, wall thickness, gallery openings and prong positions are all set in the model.

Render And Review

See it before it exists.

The design team presents sketches or 3D renderings for approval.

Wax

The last cheap change.

Wax is injected into the mould cavity under pressure and can be held and sized.

Master Record

Kept, so it can be made again.

The approved model is the thing a repeat order is built from.

Products Involved

The Products Referenced Above

Eternity And Wedding Bands

5.7ct Radiant Cut Diamond Eternity Band

A full eternity band carrying approximately 5.7 cttw of elongated radiant cut white diamonds in a shared prong setting, hand made in solid 18K gold.

See the specification

Statement And Mechanical Rings

Handmade Geometric 3D Spinner Diamond Band Ring

A wide ornate 3D band with a working pinion: the outer edge turns freely against the core, with diamond accents across the geometric face.

See the specification

Jade And Gemstone Pendants

Jadeite Cabochon And Diamond Pendant Necklace

An oval jadeite cabochon of intense green colour and very good translucency, framed with brilliant-cut diamonds and mounted in 18 karat white gold.

See the specification

Coloured Stone Engagement Rings

Blue Sapphire And Diamond Halo Engagement Ring

An emerald-cut Ceylon blue sapphire inside a halo of baguette and round diamonds, set in 18K white gold, with the sapphire GIA certified.

See the specification

Pearl Jewellery

South Sea Golden Pearl And Diamond Ring

A genuine natural South Sea golden round pearl on an 18K fan setting, set with natural VS1-G quality diamonds, designed, drilled and set in-house.

See the specification

Certified Solitaire Engagement Rings

GIA 2.01ct Round Brilliant Engagement Ring

A vintage-styled solitaire carrying a GIA certified 2.01 carat round brilliant cut natural diamond, crafted in 750 solid 18K gold with a low profile shank.

See the specification

Questions

CAD And 3D Prototyping Questions

Can you work from a photograph of an existing piece?

From your own design or your own commission, yes. Not from another brand's protected design.

Do I get the CAD file?

Ask at brief stage. File ownership is a commercial point, and it should be settled in writing before the model is built rather than after.

What does a render not show me?

Weight, and how it sits on a hand. A render will not tell you that a shank is thin or a shoulder is wide. That is what the wax stage is for.

Can a CAD model be scaled to another size?

Mostly, but not blindly. Stone seats do not scale with the band, so a resized model is re-checked rather than simply stretched.

Start On CAD And 3D Prototyping

Send the reference, the quantity and the destination market. A recommended starting point with the matching specifications comes back by email.

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