They're diamonds grown in a lab rather than mined from the ground. Growers recreate the heat and pressure (or the carbon-rich conditions) that form diamonds naturally, and the carbon crystallises into a diamond over a few weeks.

Yes. A lab-grown diamond is made of the same carbon, in the same crystal structure, as a mined diamond. It has the same hardness and sparkle, and a jeweller can't tell them apart without specialist equipment.

Yes. They're graded by the same independent labs and on the same scales as mined diamonds. Every Una diamond comes with an IGI report covering its cut, colour, clarity and carat weight.

Absolutely. You can design your ring from scratch in our ring builder, choosing the stone shape, setting, band and metal. If you'd like to change one of our existing designs, add your requests to the notes on your order and our team will help.

The same way you'd care for any diamond ring. Soak it in warm water with a little mild soap, brush gently around the setting with a soft toothbrush, then rinse and pat dry. Store it on its own so it doesn't scratch, or get scratched by, other pieces.

Where they're made. A mined diamond formed underground over millions of years; a lab-grown diamond formed in a controlled environment over a few weeks. Once they're cut and polished, they're the same material.

They're graded on exactly the same scales, so a lab-grown diamond with a given cut, colour and clarity grade will look the same as a mined diamond with those grades. Quality comes down to the individual stone, not where it grew.

Generally, yes. A lab-grown diamond usually costs considerably less than a mined diamond of the same size and quality, which is why many people choose a larger stone or a higher grade than they'd planned.

They avoid the problems tied to diamond mining, like land clearing and the risk of stones coming from conflict areas. That's a big part of why we chose them.

They don't involve digging up land, so there's no mine site, habitat loss or waste rock. Growing a diamond does use a lot of electricity, though, so the footprint depends on how the grower is powered. Many are moving to renewable energy.

Compared with mining, we think so. There's no mine and no disturbed land, and the supply chain is much shorter. The part still improving is energy use, which is why it's worth knowing how a grower is powered.

Every Una ring is made to order just for you, so we can't accept returns or exchanges. Your ring is covered by our three-year warranty against manufacturing defects. You'll find the details on our returns and warranty page.

Please allow around six weeks for us to make your ring. Once it's finished, it's checked by our team and sent with free insured shipping on orders over $250 (A$15 flat under). Delivery usually takes 2 to 5 business days within Australia and 5 to 10 business days internationally, depending on customs. If you have a date in mind, let us know before you order.

Yes. Every Una diamond comes with an IGI report, which confirms it's lab-grown and records its cut, colour, clarity and carat weight.