How much does a 3.00 to 4.99ct I IF lab grown oval diamond cost?

As of September 2026, 3.00 to 4.99ct I IF lab grown oval diamonds typically cost $29,384 NZD to $132,421 NZD, with a median price of $90,902 NZD. There are currently 4 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct I IF Lab Grown Oval

Quick answer

As of September 2026, there are 4 lab grown oval diamonds with I colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $29,384 NZD to $132,421 NZD, with a median of $90,902 NZD. At least 19 retailers stock this exact specification. Half of all listings fall between $1,622 NZD and $5,325 NZD per carat. The same specification in natural form lists at a median of about $27,553 NZD per carat.

Three of the best scored stones at this specification right now:

3.05ct Oval I IF, IGI, score 71 of 100, from $3,673 NZD

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Oval lab grown stones in the index: 487 USD per carat, -11.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$3,673 NZD

Highest Price

$149,562 NZD

Average Price

$83,760 NZD

Market Intelligence

Retailers Selling

Price Spread

143.9%

Price Range

Price per carat distribution across retailers

$1,498/ct

10th Percentile

$696

Median

$1,498

90th Percentile

$7,390

Score Distribution

4 diamonds scored across 2 quality tiers

Very Good

2 (50.0%)

Average

2 (50.0%)

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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