How much does a 5.00ct+ E SI1 lab grown oval diamond cost?

As of September 2026, 5.00ct+ E SI1 lab grown oval diamonds typically cost HK$6,948 HKD to HK$57,576 HKD, with a median price of HK$11,819 HKD. There are currently 151 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI1 oval diamond?

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ E SI1 Lab Grown Oval

Quick answer

As of September 2026, there are 151 lab grown oval diamonds with E colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run HK$6,948 HKD to HK$57,576 HKD, with a median of HK$11,819 HKD. At least 13 retailers stock this exact specification. Half of all listings fall between HK$2,195 HKD and HK$7,000 HKD per carat. The same specification in natural form lists at a median of about HK$274,131 HKD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Oval lab grown stones in the index: 487 USD per carat, -11.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

151

Lowest Price

HK$3,450 HKD

Highest Price

HK$151,351 HKD

Average Price

HK$25,386 HKD

Market Intelligence

Retailers Selling

Price Spread

182.4%

Price Range

Price per carat distribution across retailers

$336/ct

10th Percentile

$241

Median

$336

90th Percentile

$1,060

Score Distribution

151 diamonds scored across 4 quality tiers

Excellent

29 (19.2%)

Very Good

57 (37.7%)

Good

13 (8.6%)

Average

52 (34.4%)

Find Your Diamond

Search 151 E SI1 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 SI1F colour is visually identical to E to the naked eye

Save 5%

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