4 Carat Round Lab-grown Diamond Prices

The current price for a 4 carat round lab-grown diamond in United Kingdom is £1,132.78, calculated from 4,121 diamonds that match this carat weight and shape in our database, and has increased by 2.25% over the last 7 days.

When comparing to 4 carat lab-grown diamond prices, prices for these diamonds range from £365.07 to £15,955.49, depending on factors such as colour and clarity.

4 Carat Round Lab-grown Diamond Price Trends

Overall, the trend for 4 carat round lab-grown diamond prices over the past three weeks shows a consistent increase.

The 7-day change is a moderate increase of 2.25%, the 14-day change is a sizable increase of 2.16%, and the 21-day change is a considerable increase of 4.30%.

These upward trends in diamond prices may indicate growing demand or limited supply in the market.

4 Carat Lab-grown Round Diamond Prices by Color and Clarity

Clarity \ ColorDEFGHIJ
IF£12,633£7,494£4,734£7,459N/AN/AN/A
VVS1£3,202£2,604£1,955£2,224£1,421N/AN/A
VVS2£2,089£1,453£665£580£63,950£566£661
VS1£1,098£794£1,549£637£496£530£549
VS2£1,207£864£862£675£950£437£856
SI1£956£604£546£455£525£449N/A
SI2£1,040£590£491£477£607£468£568
I1N/AN/AN/A£466£1,422N/AN/A

In United Kingdom, the highest quality 4 carat round lab-grown diamonds with colour grade D and clarity IF are priced at £12,632.59.

The lowest quality lab-grown diamonds with colour grade J and clarity SI2 are priced at £567.94.

This is a difference of £12,064.65, which means that the highest quality lab-grown diamond is priced 2124.28% higher than the lowest quality lab-grown diamonds at the same carat weight.

It should be noted that there may be some seeming anomalies in the table where lower quality diamonds are priced higher than better quality diamonds. This can happen as our database sources prices from a large number of suppliers and if there are relatively few of a particular combination of shape, colour, and clarity available, pricing discrepancies can occur.