How much does a 1.50 to 1.99ct J VS1 lab grown marquise diamond cost?

As of October 2026, 1.50 to 1.99ct J VS1 lab grown marquise diamonds typically cost HK$15,362 HKD to HK$20,697 HKD, with a median price of HK$18,030 HKD. There are currently 1 diamonds matching this specification available across retailers.

Where can I find the best price on a J VS1 marquise diamond?

About 50% of these diamonds are available at multiple retailers, with an average price spread of 58%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 1 lab grown marquise diamonds with J colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$15,362 HKD to HK$20,697 HKD, with a median of HK$18,030 HKD. At least 12 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between HK$9,658 HKD and HK$16,615 HKD per carat. The same specification in natural form lists at a median of about HK$39,442 HKD per carat. Over the last 30 days the median price moved +8.5% and the number of listings moved -35.8%.

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

1.71ct Marquise J VS1, IGI, grade A, from HK$14,695 HKD

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. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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$14,695 HKD

Highest Price

HK$48,953 HKD

Average Price

HK$18,030 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

58.1%

30-Day Price Trend

+8.5%

30-Day Supply Change

-35.8%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,526/ct

10th Percentile

$774

Median

$1,526

90th Percentile

$2,486

Score Distribution

2 diamonds scored across 2 quality tiers

Excellent

1 (50.0%)

Good

1 (50.0%)

Find Your Diamond

Search 1 J VS1 marquise 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