How much does a 1.50 to 1.99ct G SI2 lab grown emerald diamond cost?

As of October 2026, 1.50 to 1.99ct G SI2 lab grown emerald diamonds typically cost £125 GBP to £1,104 GBP, with a median price of £505 GBP. There are currently 11 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 103%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G SI2 Lab Grown Emerald

Quick answer

As of October 2026, there are 11 lab grown emerald diamonds with G colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £125 GBP to £1,104 GBP, with a median of £505 GBP. At least 25 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 103%. Half of all listings fall between £160 GBP and £498 GBP per carat. The same specification in natural form lists at a median of about £3,080 GBP per carat. Over the last 30 days the median price moved +8.4% and the number of listings moved +12.5%.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Emerald lab grown stones in the index: 451 USD per carat, -8.3% month on month. See the full index release

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

Last updated: October 2026

Available

Lowest Price

£117 GBP

Highest Price

£2,419 GBP

Average Price

£608 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

33.3%

Price Spread

103.2%

30-Day Price Trend

+8.4%

30-Day Supply Change

+12.5%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$436/ct

10th Percentile

$124

Median

$436

90th Percentile

$1,126

Score Distribution

25 diamonds scored across 4 quality tiers

Excellent

4 (16.0%)

Very Good

6 (24.0%)

Good

5 (20.0%)

Average

10 (40.0%)

Find Your Diamond

Search 11 G SI2 emerald diamonds and compare prices.

Search Diamonds

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