How much does a 0.20 to 0.49ct D IF natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct D IF natural marquise diamonds typically cost £358 GBP to £1,138 GBP, with a median price of £570 GBP. There are currently 525 diamonds matching this specification available across retailers.

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

About 45% of these diamonds are available at multiple retailers, with an average price spread of 39%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct D IF Natural Marquise

Quick answer

As of October 2026, there are 525 natural marquise diamonds with D colour and IF clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £358 GBP to £1,138 GBP, with a median of £570 GBP. At least 17 retailers stock this exact specification, and 45% of the stones appear at more than one of them, with an average price spread of 39%. Half of all listings fall between £1,388 GBP and £2,076 GBP per carat. The same specification in lab grown form lists at a median of about £709 GBP per carat. Over the last 30 days the median price moved -9.2% and the number of listings moved +26.7%.

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. 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: October 2026

Available

525

Lowest Price

£239 GBP

Highest Price

£1,943 GBP

Average Price

£666 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

44.9%

Price Spread

39.5%

30-Day Price Trend

-9.2%

30-Day Supply Change

+26.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$2,336/ct

10th Percentile

$1,614

Median

$2,336

90th Percentile

$3,265

Score Distribution

1.1K diamonds scored across 5 quality tiers

Exceptional

5 (0.5%)

Excellent

264 (25.1%)

Very Good

113 (10.8%)

Good

439 (41.8%)

Average

230 (21.9%)

Find Your Diamond

Search 525 D IF marquise diamonds and compare prices.

Search Diamonds

Consider Instead

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

D VVS1VVS1 inclusions are not visible without magnification

Save 17%

Lab-Grown D IFSame specifications, lab-grown origin

Save 60%

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