How much does a 1.00 to 1.49ct J SI1 lab grown emerald diamond cost?

As of October 2026, 1.00 to 1.49ct J SI1 lab grown emerald diamonds typically cost HK$5,414 HKD to HK$5,963 HKD, with a median price of HK$5,492 HKD. There are currently 31 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI1 emerald diamond?

About 84% of these diamonds are available at multiple retailers, with an average price spread of 82%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 31 lab grown emerald diamonds with J colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$5,414 HKD to HK$5,963 HKD, with a median of HK$5,492 HKD. At least 14 retailers stock this exact specification, and 84% of the stones appear at more than one of them, with an average price spread of 82%. Half of all listings fall between HK$6,419 HKD and HK$13,182 HKD per carat. The same specification in natural form lists at a median of about HK$15,342 HKD per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved -7.6%.

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

HK$5,335 HKD

Highest Price

HK$30,629 HKD

Average Price

HK$5,638 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

83.7%

Price Spread

82.3%

30-Day Price Trend

-0.2%

30-Day Supply Change

-7.6%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,048/ct

10th Percentile

$620

Median

$1,048

90th Percentile

$2,946

Score Distribution

31 diamonds scored across 2 quality tiers

Excellent

18 (58.1%)

Very Good

13 (41.9%)

Find Your Diamond

Search 31 J SI1 emerald diamonds and compare prices.

Search Diamonds

Consider Instead

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

J SI2SI2 inclusions are not visible without magnification

Save 15%

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