How much does a 1.50 to 1.99ct J IF natural marquise diamond cost?

As of November 2026, 1.50 to 1.99ct J IF natural marquise diamonds typically cost £6,202 GBP to £9,977 GBP, with a median price of £7,923 GBP. There are currently 4 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF marquise diamond?

About 56% of these diamonds are available at multiple retailers, with an average price spread of 31%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J IF Natural Marquise

Quick answer

As of November 2026, there are 4 natural marquise diamonds with J colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £6,202 GBP to £9,977 GBP, with a median of £7,923 GBP. At least 31 retailers stock this exact specification, and 56% of the stones appear at more than one of them, with an average price spread of 31%. Half of all listings fall between £4,222 GBP and £5,796 GBP per carat. Over the last 30 days the median price moved +5.5% and the number of listings moved +8.0%.

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. Marquise natural stones in the index: 2,268 USD per carat, +10.8% 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: November 2026

Available

Lowest Price

£4,344 GBP

Highest Price

£15,014 GBP

Average Price

£7,919 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

56.3%

Price Spread

30.7%

30-Day Price Trend

+5.5%

30-Day Supply Change

+8.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,871/ct

10th Percentile

$4,264

Median

$6,871

90th Percentile

$8,474

Score Distribution

9 diamonds scored across 4 quality tiers

Excellent

4 (44.4%)

Very Good

1 (11.1%)

Good

2 (22.2%)

Average

2 (22.2%)

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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