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Oval|Lab Grown|IGI

4.09ct D SI2 Oval Lab Grown Diamond

ID • D/SI2 • IGI LG831623850

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG831623850

Diamond specifications and retailer prices

From HK$4,316 HKD
$550 USD
As of October 29, 2026
Save HK$37,506 HKD (90%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$41,821 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831623850 or 831623850. Listed at 7 retailers as of October 29, 2026, with prices from HK$4,316 to HK$41,821, a HK$37,506 spread on the same certified stone. Brilliant Earth lists it at HK$41,821. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.09
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831623850
Dimensions13.00 × 8.88 × 5.63 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.00 mm8.88 mm4.09 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831623850
Side View
Table 59.0%Crown 33.1°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.4%

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$41,821 HKD|Low: HK$4,316 HKD|High: HK$2,025,956 HKD|Avg: HK$66,744 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5HK$4,316 HKD
Retailer 6HK$4,544 HKD
Retailer 7HK$6,418 HKD
Retailer 4HK$7,588 HKD
Retailer 2HK$7,943 HKD
Retailer 3HK$12,845 HKD
Retailer 8HK$14,649 HKD
Brilliant EarthHK$41,821 HKD

24 data points across 8 retailers

7 retailersHK$4,316 HKD to HK$41,821 HKD

A
Cheapest Retailer
-
HK$4,316 HKD
$550 USD
Final sale: no returns
Retailer 2
-
HK$4,544 HKD
£456 GBP
View
Price last confirmed 13 days ago
B+
Retailer 3
-
HK$6,418 HKD
$818 USD
View
A
Retailer 4
-
HK$7,943 HKD
£797 GBP
View
B
Retailer 5
-
HK$12,845 HKD
$1,637 USD
View
B
Retailer 6
-
HK$14,649 HKD
$1,867 USD
View
Most Expensive
B
Brilliant Earth
21799313A · Oct 29
HK$41,821 HKD
$5,330 USD
View
6 more retailers have this diamond
Prices start from HK$4,316 HKDSave up to HK$37,506 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$4,316 HKD