How much does a 1.50 to 1.99ct H SI2 natural radiant diamond cost?

As of November 2026, 1.50 to 1.99ct H SI2 natural radiant diamonds typically cost €3,106 EUR to €8,728 EUR, with a median price of €5,386 EUR. There are currently 152 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI2 radiant diamond?

About 34% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct H SI2 Natural Radiant

Quick answer

As of November 2026, there are 152 natural radiant diamonds with H color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €3,106 EUR to €8,728 EUR, with a median of €5,386 EUR. At least 55 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between €2,586 EUR and €4,237 EUR per carat. The same specification in lab grown form lists at a median of about €993 EUR per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +15.4%.

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. Radiant natural stones in the index: 3,091 USD per carat, +13.2% 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: November 2026

Available

152

Lowest Price

€1,883 EUR

Highest Price

€14,965 EUR

Average Price

€5,730 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

34.5%

Price Spread

48.5%

30-Day Price Trend

-0.4%

30-Day Supply Change

+15.4%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,802/ct

10th Percentile

$2,323

Median

$3,802

90th Percentile

$5,811

Score Distribution

446 diamonds scored across 4 quality tiers

Excellent

91 (20.4%)

Very Good

92 (20.6%)

Good

90 (20.2%)

Average

173 (38.8%)

Find Your Diamond

Search 152 H SI2 radiant 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 H SI2Same specifications, lab-grown origin

Save 71%

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