How much does a 0.20 to 0.49ct G VVS1 natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct G VVS1 natural marquise diamonds typically cost £249 GBP to £771 GBP, with a median price of £402 GBP. There are currently 441 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 34%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G VVS1 Natural Marquise

Quick answer

As of October 2026, there are 441 natural marquise diamonds with G colour and VVS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £249 GBP to £771 GBP, with a median of £402 GBP. At least 15 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 34%. Half of all listings fall between £995 GBP and £1,442 GBP per carat. The same specification in lab grown form lists at a median of about £502 GBP per carat. Over the last 30 days the median price moved 0.0% and the number of listings moved +10.5%.

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

441

Lowest Price

£170 GBP

Highest Price

£1,314 GBP

Average Price

£449 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

41.5%

Price Spread

34.3%

30-Day Price Trend

0.0%

30-Day Supply Change

+10.5%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,745/ct

10th Percentile

$975

Median

$1,745

90th Percentile

$2,432

Score Distribution

1.0K diamonds scored across 5 quality tiers

Exceptional

1 (0.1%)

Excellent

260 (25.5%)

Very Good

251 (24.6%)

Good

156 (15.3%)

Average

351 (34.4%)

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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