How much does a 1.00 to 1.49ct G I1 lab grown oval diamond cost?

As of August 2026, 1.00 to 1.49ct G I1 lab grown oval diamonds typically cost $3,004 NZD to $9,890 NZD, with a median price of $7,091 NZD. There are currently 12 diamonds matching this specification available across retailers.

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

About 23% of these diamonds are available at multiple retailers, with an average price spread of 79%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G I1 Lab Grown Oval

Last updated: August 2026

Available

Lowest Price

$2,635 NZD

Highest Price

$11,258 NZD

Average Price

$6,935 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

22.7%

Price Spread

79.2%

30-Day Price Trend

+16.4%

30-Day Supply Change

-46.5%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$2,580/ct

10th Percentile

$1,068

Median

$2,580

90th Percentile

$4,215

Score Distribution

12 diamonds scored across 3 quality tiers

Very Good

1 (8.3%)

Good

2 (16.7%)

Average

9 (75.0%)

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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