How much does a 1.50 to 1.99ct I VVS1 natural radiant diamond cost?

As of October 2026, 1.50 to 1.99ct I VVS1 natural radiant diamonds typically cost £3,902 GBP to £9,356 GBP, with a median price of £6,894 GBP. There are currently 50 diamonds matching this specification available across retailers.

Where can I find the best price on a I VVS1 radiant diamond?

About 27% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VVS1 Natural Radiant

Quick answer

As of October 2026, there are 50 natural radiant diamonds with I colour and VVS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £3,902 GBP to £9,356 GBP, with a median of £6,894 GBP. At least 57 retailers stock this exact specification, and 27% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between £3,454 GBP and £5,657 GBP per carat. The same specification in lab grown form lists at a median of about £706 GBP per carat. Over the last 30 days the median price moved +0.8% and the number of listings moved +7.7%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Radiant natural stones in the index: 3,091 USD per carat, +13.2% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

£2,704 GBP

Highest Price

£18,938 GBP

Average Price

£7,085 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

27.5%

Price Spread

48.9%

30-Day Price Trend

+0.8%

30-Day Supply Change

+7.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,002/ct

10th Percentile

$3,789

Median

$6,002

90th Percentile

$9,069

Score Distribution

180 diamonds scored across 4 quality tiers

Excellent

30 (16.7%)

Very Good

40 (22.2%)

Good

30 (16.7%)

Average

80 (44.4%)

Find Your Diamond

Search 50 I VVS1 radiant diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J VVS1J colour is visually identical to I to the naked eye

Save 28%

Lab-Grown I VVS1Same specifications, lab-grown origin

Save 84%

Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1