Heart lab-grown diamonds
A heart cut is a brilliant cut in a heart outline, best from about one carat up. Lab-grown stones cost far less per carat, so many buyers choose a larger size or a higher colour.
| Carat | Colour D-E | Colour F-G | Colour H-I |
|---|---|---|---|
| 0.5 ct | A$320 | A$280 | A$240 |
| 0.75 ct | A$450 | A$400 | A$340 |
| 1.0 ct | A$600 | A$540 | A$460 |
| 1.25 ct | A$780 | A$690 | A$600 |
| 1.5 ct | A$990 | A$890 | A$760 |
| 2.0 ct | A$1,400 | A$1,250 | A$1,100 |
| 2.5 ct | A$1,850 | A$1,650 | A$1,400 |
| 3.0 ct | A$2,350 | A$2,100 | A$1,800 |
| 4.0 ct | A$3,500 | A$3,150 | A$2,700 |
| 5.0 ct | A$4,900 | A$4,350 | A$3,750 |
Recommended proportions
| Length-to-width ratio | 0.90-1.10 |
|---|---|
| Table | 56-62 % |
| Depth | 57-62 % |
| Cut | Excellent / Ideal |
Guide ranges for an excellent-looking stone; we check them on every report before we offer you a diamond.
Questions buyers ask
Are lab-grown diamonds real diamonds?
Yes. A lab-grown diamond is pure crystallised carbon with the same hardness, refractive index and chemical structure as a mined diamond. Gem labs such as IGI and GIA grade them with the same colour, clarity and cut scales, and the report states that the stone is laboratory-grown.
How much cheaper is lab-grown than natural?
For the same size and quality, a lab-grown diamond usually costs a small fraction of a natural one. On our current price list a 1 carat round F-G VS lab-grown diamond is A$630 and a comparable GIA-graded natural diamond is A$7,850.
Which certificate comes with my diamond?
Lab-grown centre stones and loose stones come with an IGI report. Natural diamonds of 0.30 ct and above come with a GIA report. The report number is laser-inscribed on the girdle, and we send you the report before we charge.
Other shapes
Round · Oval · Emerald · Cushion · Princess · Pear · Radiant · Marquise · Asscher