How much does a 1.50 to 1.99ct F I1 natural oval diamond cost?

As of October 2026, 1.50 to 1.99ct F I1 natural oval diamonds typically cost $5,698 SGD to $14,566 SGD, with a median price of $9,114 SGD. There are currently 41 diamonds matching this specification available across retailers.

Where can I find the best price on a F I1 oval diamond?

About 20% of these diamonds are available at multiple retailers, with an average price spread of 43%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F I1 Natural Oval

Quick answer

As of October 2026, there are 41 natural oval diamonds with F colour and I1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $5,698 SGD to $14,566 SGD, with a median of $9,114 SGD. At least 26 retailers stock this exact specification, and 20% of the stones appear at more than one of them, with an average price spread of 43%. Half of all listings fall between $4,086 SGD and $6,259 SGD per carat. Over the last 30 days the median price moved -1.1% and the number of listings moved +5.8%.

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

Lowest Price

$1,778 SGD

Highest Price

$19,523 SGD

Average Price

$9,611 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

19.6%

Price Spread

43.3%

30-Day Price Trend

-1.1%

30-Day Supply Change

+5.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,915/ct

10th Percentile

$2,174

Median

$3,915

90th Percentile

$5,967

Score Distribution

224 diamonds scored across 4 quality tiers

Excellent

20 (8.9%)

Very Good

31 (13.8%)

Good

15 (6.7%)

Average

158 (70.5%)

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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