Make the specification complete
A one-carat stone can be natural or laboratory-grown and can have different shapes, colour and clarity grades. Proportions, appearance and documentation also change the offer. Comparing only the carat figure hides those differences.
Compare the full cost
Use the same currency and check what delivery and other charges are included. Keep a loose-stone quote separate from the price of a finished ring. Indicative catalogue prices require confirmation for an available stone.
Choose between comparable candidates
Record three offers with their report numbers, measurements, grades and complete cost. Inspect images or video under comparable conditions. The useful question is which stone meets your requirements, not which one-carat label is cheapest.
Current indicative 1 carat catalogue prices
These loose-stone retail prices are generated from the active Casta Diva catalogue and include the current inbound allowance and VAT. An available stone and its final quotation must still be confirmed.
| Shape | Catalogue from | D / VS1 | D / VVS1 |
|---|---|---|---|
| Round | 1 090 ₾ | 1 430 ₾ | 1 560 ₾ |
| Oval | 970 ₾ | 1 330 ₾ | 1 430 ₾ |
| Princess | 1 000 ₾ | 1 130 ₾ | 1 200 ₾ |
| Cushion | 1 050 ₾ | 1 070 ₾ | 1 580 ₾ |
| Emerald | 1 040 ₾ | 1 230 ₾ | 1 230 ₾ |
| Pear | 970 ₾ | 1 320 ₾ | 1 390 ₾ |
| Marquise | 990 ₾ | 1 170 ₾ | On request |
| Asscher | 1 100 ₾ | 1 130 ₾ | 1 600 ₾ |
| Heart | 1 130 ₾ | 1 130 ₾ | 1 400 ₾ |
Prices refer to loose laboratory-grown diamonds; jewellery manufacture is not included.
Compare all sizes and grades →Sources and further reading
This English edition draws on the source material referenced below.