How much does a 2.00 to 2.99ct G SI2 lab grown radiant diamond cost?

As of September 2026, 2.00 to 2.99ct G SI2 lab grown radiant diamonds typically cost $879 NZD to $27,175 NZD, with a median price of $2,638 NZD. There are currently 22 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 radiant diamond?

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2.00 to 2.99ct G SI2 Lab Grown Radiant

Quick answer

As of September 2026, there are 22 lab grown radiant diamonds with G colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $879 NZD to $27,175 NZD, with a median of $2,638 NZD. At least 18 retailers stock this exact specification. Half of all listings fall between $679 NZD and $3,886 NZD per carat. The same specification in natural form lists at a median of about $12,289 NZD per carat.

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

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. Radiant lab grown stones in the index: 473 USD per carat, -12.5% 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

$630 NZD

Highest Price

$33,700 NZD

Average Price

$7,404 NZD

Market Intelligence

Retailers Selling

Price Spread

171.9%

Price Range

Price per carat distribution across retailers

$1,119/ct

10th Percentile

$247

Median

$1,119

90th Percentile

$8,891

Score Distribution

22 diamonds scored across 4 quality tiers

Excellent

2 (9.1%)

Very Good

5 (22.7%)

Good

7 (31.8%)

Average

8 (36.4%)

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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