How much is a lab-grown engagement ring?

Settings start from $2,200 including consultation, CAD design and manufacture. The lab-grown diamond is priced separately by carat, cut, colour, clarity and shape.

Is a lab-grown engagement ring durable?

Yes. Lab-grown diamonds are 10 on the Mohs scale, as hard as natural.

Do lab-grown centre diamonds come with a report?

Lab-grown centre diamonds are supplied with grading reports from internationally recognised laboratories such as IGI, where applicable.

How long does delivery take?

Once your ring is ready, it is sent by Australia Post Express with tracking, insurance and signature on delivery. Delivery estimates are set by Australia Post.

Can I compare lab-grown and natural diamonds side by side?

Yes. We hold both, so you can compare them in the showroom or on a video call before you decide.

Lab-grown diamonds · Australia-wide

Lab-grown diamond engagement rings

More diamond for your budget, made by our jewellers.

By the CTJ Jewellery team, led by founder Greg Ward · Updated September 2026 · Editorial policy

Request a quote

Key facts

Settings from $2,200, diamond priced separately
Custom rings in about 2 to 3 weeks
Consultation, CAD design and manufacture included
Platinum and white, yellow or rose gold
Consultations by video Australia-wide
Insured, tracked, signed-for delivery

Why choose a lab-grown diamond engagement ring?

A lab-grown centre diamond gives you more size or higher grades within the same budget, with the same hardness and brilliance as natural.

Which styles suit a lab-grown diamond?

All of them. Choose from solitaire, halo, hidden halo, cathedral, three-stone and bezel settings, in any of ten diamond shapes.

Settings and metals Diamond shapes

How does buying remotely work?

Start with a phone or video consultation. We present lab-grown diamonds with high-resolution photos and video, refine your design with CAD, make the ring and quality check it, then send it by insured delivery.

Where do you deliver?

Australia-wide, including Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Hobart and Darwin. You can also collect from our Gold Coast showroom.