How much does a 1.50 to 1.99ct F SI2 natural oval diamond cost?

As of October 2026, 1.50 to 1.99ct F SI2 natural oval diamonds typically cost HK$22,760 HKD to HK$92,173 HKD, with a median price of HK$50,517 HKD. There are currently 612 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI2 oval diamond?

About 36% 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 F SI2 Natural Oval

Quick answer

As of October 2026, there are 612 natural oval diamonds with F colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$22,760 HKD to HK$92,173 HKD, with a median of HK$50,517 HKD. At least 55 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between HK$23,726 HKD and HK$42,412 HKD per carat. The same specification in lab grown form lists at a median of about HK$4,048 HKD per carat. Over the last 30 days the median price moved -2.3% and the number of listings moved +2.6%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

612

Lowest Price

HK$14,684 HKD

Highest Price

HK$199,875 HKD

Average Price

HK$54,249 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

35.6%

Price Spread

58.3%

30-Day Price Trend

-2.3%

30-Day Supply Change

+2.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,086/ct

10th Percentile

$2,134

Median

$4,086

90th Percentile

$6,791

Score Distribution

1.7K diamonds scored across 4 quality tiers

Excellent

359 (21.3%)

Very Good

487 (28.9%)

Good

333 (19.7%)

Average

508 (30.1%)

Find Your Diamond

Search 612 F SI2 oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

F I1I1 inclusions are not visible without magnification

Save 4%

Lab-Grown F SI2Same specifications, lab-grown origin

Save 87%

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