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Round|Lab Grown|IGI

4.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG799638998

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799638998

Diamond specifications and retailer prices

From HK$22,971 HKD
£2,305 GBP
As of October 30, 2026
Save HK$102,403 HKD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$139,653 HKD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799638998 or 799638998. Listed at 13 retailers as of October 30, 2026, with a 446% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799638998
Dimensions10.18 × 10.12 × 6.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.18 mm10.12 mm4.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799638998
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$108,898 HKD|Low: HK$14,232 HKD|High: HK$165,701 HKD|Avg: HK$67,481 HKD|-34.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 14HK$19,928 HKD
Retailer 2HK$22,971 HKD
Retailer 9HK$32,395 HKD
Retailer 8HK$32,403 HKD
Retailer 11HK$32,983 HKD
Retailer 13HK$49,483 HKD
Retailer 7HK$53,115 HKD
Retailer 5HK$55,508 HKD
Retailer 3HK$58,852 HKD
Retailer 10HK$62,554 HKD
Retailer 4HK$76,566 HKD
Brilliant EarthHK$108,898 HKD
Retailer 12HK$125,374 HKD
Retailer 6HK$139,231 HKD

19 data points across 14 retailers

13 retailersHK$22,971 HKD to HK$125,374 HKD

Retailer 1
-
HK$19,551 HKD
$2,492 USD
Price last confirmed 29 days ago
Retailer 2
-
HK$22,156 HKD
$2,824 USD
View
Price last confirmed 28 days ago
A
Retailer 3
-
HK$22,971 HKD
£2,305 GBP
View
A
Retailer 4
-
HK$32,395 HKD
$4,129 USD
View
A
Retailer 5
-
HK$32,403 HKD
$4,130 USD
View
A
Retailer 6
-
HK$32,983 HKD
$4,204 USD
View
Retailer 7
-
HK$35,847 HKD
$4,569 USD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
HK$49,483 HKD
$6,307 USD
View
B+
Retailer 9
-
HK$53,115 HKD
$6,770 USD
View
B+
Retailer 10
-
HK$62,554 HKD
£6,278 GBP
View
B
Retailer 11
-
HK$108,898 HKD
$13,880 USD
View
B
Retailer 12
-
HK$125,374 HKD
$15,980 USD
View
Most Expensive
Brilliant Earth
21412100B · Oct 21
HK$139,653 HKD
$17,800 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from HK$22,971 HKDSave up to HK$102,403 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.00ct Round
HK$22,971 HKD