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Oval|Lab Grown|IGI

4.00ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG780661620

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780661620

Diamond specifications and retailer prices

From HK$15,842 HKD
$2,019 USD
As of October 29, 2026
Save HK$107,660 HKD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$123,502 HKD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval 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 LG780661620 or 780661620. Listed at 13 retailers as of October 28, 2026, with prices from HK$15,842 to HK$123,502, a HK$107,660 spread on the same certified stone. Brilliant Earth lists it at HK$123,502. 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 angle36.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661620
Dimensions12.83 × 8.78 × 5.39 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
12.83 mm8.78 mm4.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661620
Side View
Table 57.0%Crown 36.4°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 61.4%

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 29
Current: HK$123,502 HKD|Low: HK$15,842 HKD|High: HK$208,450 HKD|Avg: HK$71,401 HKD|-3.0%
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 10HK$15,842 HKD
Retailer 11HK$19,694 HKD
Retailer 4HK$27,094 HKD
Retailer 16HK$27,721 HKD
Retailer 3HK$27,878 HKD
Retailer 8HK$32,484 HKD
Retailer 2HK$32,814 HKD
Retailer 6HK$40,880 HKD
Retailer 7HK$43,987 HKD
Retailer 15HK$50,520 HKD
Retailer 17HK$54,689 HKD
Retailer 12HK$55,325 HKD
Retailer 5HK$55,999 HKD
Retailer 14HK$83,211 HKD
Retailer 13HK$108,986 HKD
Brilliant EarthHK$123,502 HKD
Retailer 9HK$208,450 HKD

16 data points across 17 retailers

13 retailersHK$15,842 HKD to HK$123,502 HKD

A
Cheapest Retailer
-
HK$15,842 HKD
$2,019 USD
A
Retailer 2
-
HK$19,694 HKD
$2,510 USD
View
A
Retailer 3
-
HK$27,094 HKD
$3,453 USD
View
A
Retailer 4
-
HK$27,721 HKD
$3,533 USD
View
A
Retailer 5
-
HK$27,878 HKD
$3,553 USD
View
A
Retailer 6
-
HK$32,814 HKD
$4,182 USD
View
Retailer 7
-
HK$43,987 HKD
$5,606 USD
View
Price last confirmed 35 days ago
B+
Retailer 8
-
HK$50,520 HKD
$6,439 USD
View
B+
Retailer 9
-
HK$54,689 HKD
$6,970 USD
View
B+
Retailer 10
-
HK$55,325 HKD
£5,552 GBP
View
B+
Retailer 11
-
HK$83,211 HKD
$10,605 USD
View
B
Retailer 12
-
HK$108,986 HKD
$13,890 USD
View
Most Expensive
B
Brilliant Earth
18495034Y · Oct 28
HK$123,502 HKD
$15,740 USD
View
12 more retailers have this diamond
Prices start from HK$15,842 HKDSave up to HK$107,660 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 Oval
HK$15,842 HKD