How much does a 5.00ct+ G I1 natural round diamond cost?

As of July 2026, 5.00ct+ G I1 natural round diamonds typically cost $27,309 NZD to $148,270 NZD, with a median price of $72,575 NZD. There are currently 25 diamonds matching this specification available across retailers.

Where can I find the best price on a G I1 round diamond?

About 67% of these diamonds are available at multiple retailers, with an average price spread of 61%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ G I1 Natural Round

Last updated: July 2026

Available

Lowest Price

$25,388 NZD

Highest Price

$241,780 NZD

Average Price

$82,215 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

66.7%

Price Spread

61.0%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$7,077/ct

10th Percentile

$1,939

Median

$7,077

90th Percentile

$8,977

Score Distribution

25 diamonds scored across 4 quality tiers

Excellent

2 (8.0%)

Very Good

9 (36.0%)

Good

4 (16.0%)

Average

10 (40.0%)

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Consider Instead

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

H I1H colour is visually identical to G to the naked eye

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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