CaratHunter
Plans
Oval|Lab Grown|IGI

4.01ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG685589270

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG685589270

Diamond specifications and retailer prices

From $633 SGD
£390 GBP
As of October 30, 2026
Save $2,159 SGD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,321 SGD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 4.01ct lab-grown oval diamond

This 4.01ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685589270 or 685589270. Listed at 14 retailers as of October 29, 2026, with a 341% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685589270
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.37 mm7.13 mm4.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685589270
Side View
Table 62.0%Crown 37.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.6%

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: $4,321 SGD|Low: $586 SGD|High: $4,321 SGD|Avg: $1,355 SGD
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 31, 2026
Retailer 14$586 SGD
Retailer 8$633 SGD
Retailer 5$683 SGD
Retailer 12$757 SGD
Retailer 13$757 SGD
Retailer 7$933 SGD
Retailer 11$1,111 SGD
Retailer 3$1,181 SGD
Retailer 6$1,184 SGD
Retailer 2$1,245 SGD
Retailer 10$2,033 SGD
Retailer 4$2,432 SGD
Retailer 9$2,793 SGD
Brilliant Earth$4,321 SGD

44 data points across 14 retailers

14 retailers$633 SGD to $2,793 SGD

Retailer 1
-
$586 SGD
$458 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$633 SGD
£390 GBP
View
Retailer 3
-
$683 SGD
$534 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$757 SGD
$592 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$757 SGD
$592 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$933 SGD
$730 USD
View
B+
Retailer 7
-
$1,181 SGD
$924 USD
View
A
Retailer 8
-
$1,184 SGD
$926 USD
View
A
Retailer 9
-
$1,245 SGD
£767 GBP
View
B+
Retailer 10
-
$1,755 SGD
$1,373 USD
View
B
Retailer 11
-
$2,033 SGD
$1,590 USD
View
Retailer 12
-
$2,432 SGD
$1,902 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$2,793 SGD
£1,720 GBP
View
Most Expensive
Brilliant Earth
15880620A · Oct 18
$4,321 SGD
$3,380 USD
View
Price last confirmed 13 days ago
13 more retailers have this diamond
Prices start from $633 SGDSave up to $2,159 SGD

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
4.01ct Oval
$633 SGD