Cushion lab-grown diamonds
A cushion cut has soft rounded corners and a romantic, pillow-like outline. 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 | £150 | £130 | £110 |
| 0.75 ct | £210 | £190 | £160 |
| 1.0 ct | £280 | £250 | £220 |
| 1.25 ct | £360 | £320 | £280 |
| 1.5 ct | £460 | £410 | £360 |
| 2.0 ct | £660 | £590 | £510 |
| 2.5 ct | £870 | £770 | £670 |
| 3.0 ct | £1,100 | £990 | £850 |
| 4.0 ct | £1,650 | £1,450 | £1,250 |
| 5.0 ct | £2,300 | £2,050 | £1,750 |
Recommended proportions
| Length-to-width ratio | 1.00-1.10 |
|---|---|
| Table | 61-67 % |
| Depth | 61-67 % |
| Cut | Excellent / Ideal |
Guide ranges for an excellent-looking stone; we check them on every report before we offer you a diamond.
Settings for this shape
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 £320 and a comparable GIA-graded natural diamond is £3,900.
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.
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