1.25 carat lab-grown diamond price
A 1.25 carat lab-grown diamond costs between A$470 and A$1,000 at Vibama Jewels, depending on shape, colour and clarity. A round stone with F-G colour, VS clarity and a grading report from IGI costs A$820.
At 1.25 carat the Cushion shape is the most affordable and the Round shape the most expensive.
Indicative prices, F-G colour, VS clarity, excellent cut: November 2026 · Updated · Diamond price index →
| Shape | Colour D-E | Colour F-G | Colour H-I |
|---|---|---|---|
| Round | A$910 | A$820 | A$700 |
| Oval | A$800 | A$720 | A$620 |
| Emerald | A$750 | A$670 | A$580 |
| Cushion | A$730 | A$650 | A$560 |
| Princess | A$730 | A$650 | A$560 |
| Pear | A$790 | A$700 | A$600 |
| Radiant | A$750 | A$670 | A$580 |
| Marquise | A$730 | A$650 | A$560 |
| Heart | A$780 | A$690 | A$600 |
| Asscher | A$750 | A$670 | A$580 |
| VVS1-VVS2 | VS1-VS2 | SI1 | |
|---|---|---|---|
| Colour D-E | A$1,000 | A$910 | A$770 |
| Colour F-G | A$900 | A$820 | A$680 |
| Colour H-I | A$770 | A$700 | A$590 |
Questions buyers ask
How much does a 1.25 carat lab-grown diamond cost?
A 1.25 carat lab-grown diamond costs between A$470 and A$1,000 at Vibama Jewels, depending on shape, colour and clarity. A round stone with F-G colour, VS clarity and a grading report from IGI costs A$820.
Which shape is cheapest at 1.25 carat?
At 1.25 carat the Cushion shape is the most affordable and the Round shape the most expensive.
Does a 1.25 carat lab-grown diamond come with a certificate?
Yes. Every lab-grown diamond we sell at this size comes with a grading report from IGI, and we send you the report and a video of the exact stone before you pay.
Prices by carat
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