How much does a 0.75 to 0.99ct J I1 natural oval diamond cost?

As of October 2026, 0.75 to 0.99ct J I1 natural oval diamonds typically cost $1,109 SGD to $2,056 SGD, with a median price of $1,485 SGD. There are currently 14 diamonds matching this specification available across retailers.

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

About 11% of these diamonds are available at multiple retailers, with an average price spread of 32%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct J I1 Natural Oval

Quick answer

As of October 2026, there are 14 natural oval diamonds with J colour and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $1,109 SGD to $2,056 SGD, with a median of $1,485 SGD. At least 22 retailers stock this exact specification, and 11% of the stones appear at more than one of them, with an average price spread of 32%. Half of all listings fall between $1,413 SGD and $1,955 SGD per carat. The same specification in lab grown form lists at a median of about $456 SGD per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +2.0%.

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

$679 SGD

Highest Price

$3,102 SGD

Average Price

$1,536 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

11.3%

Price Spread

32.3%

30-Day Price Trend

-0.4%

30-Day Supply Change

+2.0%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,308/ct

10th Percentile

$852

Median

$1,308

90th Percentile

$1,755

Score Distribution

103 diamonds scored across 4 quality tiers

Excellent

2 (1.9%)

Very Good

8 (7.8%)

Good

8 (7.8%)

Average

85 (82.5%)

Find Your Diamond

Search 14 J I1 oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown J I1Same specifications, lab-grown origin

Save 73%

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