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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 $879 NZD
£390 GBP
As of October 30, 2026
Save $2,997 NZD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,997 NZD 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: $5,997 NZD|Low: $813 NZD|High: $5,997 NZD|Avg: $1,880 NZD
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$813 NZD
Retailer 8$879 NZD
Retailer 5$947 NZD
Retailer 12$1,050 NZD
Retailer 13$1,050 NZD
Retailer 7$1,295 NZD
Retailer 11$1,543 NZD
Retailer 3$1,639 NZD
Retailer 6$1,643 NZD
Retailer 2$1,728 NZD
Retailer 10$2,821 NZD
Retailer 4$3,375 NZD
Retailer 9$3,876 NZD
Brilliant Earth$5,997 NZD

44 data points across 14 retailers

14 retailers$879 NZD to $3,876 NZD

Retailer 1
-
$813 NZD
$458 USD
Price last confirmed 29 days ago
A
Retailer 2
-
$879 NZD
£390 GBP
View
Retailer 3
-
$947 NZD
$534 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$1,050 NZD
$592 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$1,050 NZD
$592 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$1,295 NZD
$730 USD
View
B+
Retailer 7
-
$1,639 NZD
$924 USD
View
A
Retailer 8
-
$1,643 NZD
$926 USD
View
A
Retailer 9
-
$1,728 NZD
£767 GBP
View
B+
Retailer 10
-
$2,436 NZD
$1,373 USD
View
B
Retailer 11
-
$2,821 NZD
$1,590 USD
View
Retailer 12
-
$3,375 NZD
$1,902 USD
View
Price last confirmed 31 days ago
B
Retailer 13
-
$3,876 NZD
£1,720 GBP
View
Most Expensive
Brilliant Earth
15880620A · Oct 18
$5,997 NZD
$3,380 USD
View
Price last confirmed 13 days ago
13 more retailers have this diamond
Prices start from $879 NZDSave up to $2,997 NZD

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
$879 NZD