How much does a 1.00 to 1.49ct G SI1 natural round diamond cost?

As of June 2026, 1.00 to 1.49ct G SI1 natural round diamonds are available from $85 SGD to $942,278 SGD, with an average price of $4,773 SGD. There are currently 32,187 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 round diamond?

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1.00 to 1.49ct G SI1 Natural Round

Last updated: June 2026

Available

32,187

Lowest Price

$85 SGD

Highest Price

$942,278 SGD

Average Price

$4,773 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

34.5%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$3,258/ct

10th Percentile

$2,340

Median

$3,258

90th Percentile

$4,824

Score Distribution

32.2K diamonds scored across 5 quality tiers

Exceptional

4 (0.0%)

Excellent

8,761 (27.2%)

Very Good

10,503 (32.6%)

Good

7,793 (24.2%)

Average

5,125 (15.9%)

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Consider Instead

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

H SI1H colour is visually identical to G to the naked eye

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G SI2SI2 inclusions are not visible without magnification

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Lab-Grown G SI1Same specifications, lab-grown origin

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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