Custom Engagement Rings: How to Design Your Own

A ready-made ring has already locked in the stone shape, the metal, the setting style and the proportions, all chosen by someone else. Designing your own lets you make each of those calls yourself, and it lets you keep the budget realistic by deciding where to spend and where to hold back. At LILY DIA the process runs from a consultation through CAD design and approval to production, and every ring is built around the brief you settle on.

You do not need to arrive with a finished design in mind. Most people start with just a few inspiration images, a rough budget and a partner in mind, and from there we work through the stone, the setting, the metal and the proportions one decision at a time.

If you are still comparing styles, it is worth reading the engagement ring education hub first and coming back once you have a rough direction in mind.

The first conversation runs over email, WhatsApp or a video call, whichever suits you. There is no script to follow and no jewellery knowledge needed, and all we are really doing is capturing enough of the brief to start sketching the design.

• Design direction, inspiration images and any rings you already like.
• Centre stone choice: lab-grown diamond or moissanite, with the shape if known.
• Stone size and the size you want the ring to read at on the finger.
• Metal colour, including yellow gold, white gold, rose gold or platinum.
• Budget range and what matters most inside that range.
• Timeline, including any meaningful date you are working towards.
• Notes about your partner's style if the ring is a surprise.

If you do not know the size, we can help you work it out from a ring they already wear, or post you a complimentary ring sizer. The how to measure ring size guide covers the home methods that work best.

Once the brief is settled, our design team builds the ring in CAD and sends the renders back to you. You see it from above, in profile and at three-quarter angles, with the exact stone sizes, the metal and the band measurements listed beside the images.

Revisions are a normal part of the process, so this is the stage to get everything right. You can adjust the stone size, change the band width, rethink the prong style, add or remove a halo and refine the proportions. Each round usually comes back within two to three days, and production only starts once you have signed off on the final design.

For a closer look at how the different style choices read once a ring is built, have a look through the engagement ring styles and settings library.

Production runs for three to four weeks once you have approved the CAD. The metal is cast, the centre stone is set, any accent diamonds the design calls for are added, and the ring is polished and finished by hand.

Quality is checked at each stage along the way rather than only at the end. The finished ring is then photographed, packed and shipped to you insured, with tracking sent through, and most deliveries within Australia arrive three to seven business days after the ring leaves the studio.

Most of the budget goes into the centre stone. A lab-grown diamond lets you put more size into the same spend than a natural diamond would, and moissanite stretches the budget further again for the same face-up size.

The setting moves the price too. A plain solitaire sits at the lower end, a halo or a three-stone design sits in the middle, and an ornate setting with hand engraving or pave detail sits at the higher end. Platinum costs more than gold for the same design, partly because the metal itself costs more and partly because it is harder to work.

For more on the stone side of the decision, the lab-grown diamond guide and the moissanite vs diamond guide cover the trade-offs in detail.