12 Carat Lab-grown Diamond Prices

The current price for a 12 carat lab-grown diamond in United Kingdom is £7,295.64, calculated from 219 diamonds that match this carat weight and type in our database, and has decreased by 13.49% over the last 7 days.

Prices for these diamonds range from £1,880.04 to £19,778.87, depending on factors such as the diamond shape, color, and clarity.

Overall, the price trend for 12 carat lab-grown diamonds over the past three weeks shows a consistent decrease in diamond prices.

The 7-day change is a significant decrease of 13.49%, the 14-day change is a sizable decrease of 11.77%, and the 21-day change is a considerable decrease of 78.86%.

These downward trends in diamond prices could suggest weakening demand or increased supply.

12-carat Lab Diamond Prices by Shape in United Kingdom
12-carat Lab Diamond Prices by Shape in United Kingdom

The most expensive shape for 12 carat lab-grown diamonds is currently marquise, priced at £677,745.00.

The least expensive shape for 12 carat lab-grown diamonds is currently emerald, priced at £4,947.00.

This is a difference of £672,798.00, meaning that marquise diamonds are 13600.12% more expensive than emerald diamonds at the same carat weight.

These insights into lab-grown diamond prices aim to help you make an informed decision when selecting the best diamond shape for your needs.

12 Carat Diamond Prices in Ireland, Ranked by Diamond Shape

Click on any diamond shape to see more detailed pricing information.

Shape of Diamond Current Price (£) 7-Day % Change
Heart 8,295.20 1.64%
Round 8,004.91 0.86%
Princess 7,903.56 -0.96%
Pear 7,836.19 -4.60%
Oval 7,236.65 7.22%
Radiant 6,648.02 3.02%
Cushion 6,557.78 2.10%
Asscher 5,542.02 0.09%
Marquise 4,931.69 1.07%
Emerald 4,071.18 -2.56%