1.5 carat natural diamond price
A 1.5 carat natural diamond costs between A$7,400 and A$21,800 at Vibama Jewels, depending on shape, colour and clarity. A round stone with F-G colour, VS clarity and a grading report from GIA costs A$14,800. A lab-grown diamond of the same size costs about A$1,050 for the same grades.
At 1.5 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$18,500 | A$14,800 | A$11,800 |
| Oval | A$16,300 | A$13,000 | A$10,400 |
| Emerald | A$15,200 | A$12,100 | A$9,700 |
| Cushion | A$14,800 | A$11,800 | A$9,450 |
| Princess | A$14,800 | A$11,800 | A$9,450 |
| Pear | A$15,900 | A$12,700 | A$10,200 |
| Radiant | A$15,200 | A$12,100 | A$9,700 |
| Marquise | A$14,800 | A$11,800 | A$9,450 |
| Heart | A$15,700 | A$12,600 | A$10,100 |
| Asscher | A$15,200 | A$12,100 | A$9,700 |
| VVS1-VVS2 | VS1-VS2 | SI1 | |
|---|---|---|---|
| Colour D-E | A$21,800 | A$18,500 | A$14,400 |
| Colour F-G | A$17,500 | A$14,800 | A$11,500 |
| Colour H-I | A$14,000 | A$11,800 | A$9,250 |
Questions buyers ask
How much does a 1.5 carat natural diamond cost?
A 1.5 carat natural diamond costs between A$7,400 and A$21,800 at Vibama Jewels, depending on shape, colour and clarity. A round stone with F-G colour, VS clarity and a grading report from GIA costs A$14,800. A lab-grown diamond of the same size costs about A$1,050 for the same grades.
Which shape is cheapest at 1.5 carat?
At 1.5 carat the Cushion shape is the most affordable and the Round shape the most expensive.
Does a 1.5 carat natural diamond come with a certificate?
Yes. Every natural diamond we sell at this size comes with a grading report from GIA, and we send you the report and a video of the exact stone before you pay.
Prices by carat
0.3 ct · 0.5 ct · 0.7 ct · 0.9 ct · 1 ct · 1.2 ct · 1.5 ct · 2 ct · 3 ct · Lab-grown 1.5 ct →