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1 Carat Lab-Grown Diamonds
A 1 carat lab-grown diamond weighs 0.20 grams, the benchmark size for engagement rings. Carat measures weight, not width, so face-up size varies by cut. At CRTD, a 1 carat round at VS1 starts from $990 AUD. Every stone is sourced to order, IGI or GIA certified at VS1 minimum, with AU-inclusive pricing.
1 carat lab-grown diamonds across every cut
| Cut | From (VS1, 1ct) |
|---|---|
| Round | $990 AUD |
| Princess | $990 AUD |
| Oval | $990 AUD |
| Cushion | $990 AUD |
| Emerald | $990 AUD |
| Pear | $1090 AUD |
| Asscher | $1090 AUD |
| Radiant | $990 AUD |
| Heart | $1190 AUD |
Choosing at 1 carat
At 1 carat, the cut you choose changes how large the diamond reads on the finger: elongated shapes such as oval, marquise and pear spread their weight across a longer surface, so they appear larger face-up than a round or princess of the same carat. Pricing also steps up at whole-carat marks, so a stone sitting just under a round number, around 0.90 to 0.95 carat, can look near-identical to a full carat while offering better value.
How to choose your 1 carat stone
Start with the cut that speaks to you, then set your clarity and colour. Every CRTD stone is IGI or GIA certified at a VS1 minimum, sourced to your brief with AU-inclusive pricing and insured shipping. Not sure where to start? Tell us your brief and our atelier will shortlist 1 carat stones to match.
Common questions
How big does a 1 carat lab-grown diamond look?
A 1 carat round measures roughly 6.5mm across, a noticeable presence without overwhelming the hand. Because carat is weight rather than width, elongated cuts like oval, marquise and pear read larger face-up than rounder shapes of identical weight. The setting, band width and finger size also influence how substantial the stone appears.
How much does a 1 carat lab-grown diamond cost in Australia?
At CRTD, a 1 carat round at VS1 clarity starts from $990 AUD, with pricing AU-inclusive. Cost varies by cut, clarity and colour. Pricing steps up at whole-carat marks, so a stone sitting just under a round number can offer better value for a near-identical look. Every stone is sourced to order and independently certified.
Is a 1 carat lab-grown diamond good for everyday wear?
Yes. A 1 carat lab-grown diamond is chemically and physically identical to a mined diamond, ranking 10 on the Mohs hardness scale, so it withstands daily wear well. For active hands, a lower-profile setting and a rounded cut such as round or cushion protects the stone better than shapes with exposed corners.