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Oval|Lab Grown|IGI

4.09ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG780663854

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780663854

Diamond specifications and retailer prices

From HK$22,574 HKD
$2,877 USD
As of October 29, 2026
Save HK$104,851 HKD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$127,426 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.09ct lab-grown oval diamond

This 4.09ct 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 LG780663854 or 780663854. Listed at 12 retailers as of October 29, 2026, with prices from HK$22,574 to HK$127,426, a HK$104,851 spread on the same certified stone. Brilliant Earth lists it at HK$127,426. 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

4.09
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663854
Dimensions12.66 × 9.08 × 5.68 mm
L/W Ratio1.39
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
12.66 mm9.08 mm4.09 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663854
Side View
Table 60.0%Crown 36.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.6%

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 29
Current: HK$127,426 HKD|Low: HK$22,574 HKD|High: HK$143,056 HKD|Avg: HK$64,221 HKD|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8HK$22,574 HKD
Retailer 10HK$26,314 HKD
Retailer 2HK$29,539 HKD
Retailer 7HK$32,484 HKD
Retailer 11HK$34,355 HKD
Retailer 9HK$44,120 HKD
Retailer 5HK$56,482 HKD
Retailer 4HK$56,494 HKD
Retailer 6HK$57,687 HKD
Retailer 3HK$75,125 HKD
Retailer 12HK$83,407 HKD
Brilliant EarthHK$127,426 HKD

39 data points across 12 retailers

12 retailersHK$22,574 HKD to HK$127,426 HKD

A
Cheapest Retailer
-
HK$22,574 HKD
$2,877 USD
A
Retailer 2
-
HK$26,314 HKD
View
A
Retailer 3
-
HK$29,539 HKD
£2,964 GBP
View
A
Retailer 4
-
HK$32,484 HKD
$4,140 USD
View
A
Retailer 5
-
HK$34,355 HKD
€4,170 EUR
View
A
Retailer 6
-
HK$44,120 HKD
$5,623 USD
View
B+
Retailer 7
-
HK$56,482 HKD
$7,198 USD
View
Retailer 8
-
HK$56,494 HKD
$7,200 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$57,687 HKD
£5,789 GBP
View
B+
Retailer 10
-
HK$75,125 HKD
$9,574 USD
View
B+
Retailer 11
-
HK$83,407 HKD
$10,630 USD
View
Most Expensive
B
Brilliant Earth
19711969A · Oct 29
HK$127,426 HKD
$16,240 USD
View
11 more retailers have this diamond
Prices start from HK$22,574 HKDSave up to HK$104,851 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
4.09ct Oval
HK$22,574 HKD