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Oval|Lab Grown|IGI

4.00ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG771642889

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG771642889

Diamond specifications and retailer prices

From $1,281 NZD
$722 USD
As of October 29, 2026
Save $7,076 NZD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,373 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG771642889 or 771642889. Listed at 14 retailers as of October 29, 2026, with a 552% 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

4.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771642889
Dimensions12.56 × 8.91 × 5.55 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.56 mm8.91 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771642889
Side View
Table 60.0%Crown 34.5°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 62.3%

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: $11,373 NZD|Low: $1,230 NZD|High: $11,373 NZD|Avg: $4,267 NZD
Do Amore Diamonds
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
October 30, 2026
Retailer 13$1,281 NZD
Retailer 4$1,395 NZD
Retailer 2$1,469 NZD
Retailer 12$1,872 NZD
Retailer 5$2,042 NZD
Retailer 15$2,411 NZD
Retailer 7$2,578 NZD
Retailer 11$3,346 NZD
Retailer 10$3,951 NZD
Retailer 9$4,312 NZD
Retailer 3$4,613 NZD
Retailer 6$5,862 NZD
Retailer 8$6,183 NZD
Retailer 14$8,357 NZD
Do Amore Diamonds$11,373 NZD

23 data points across 15 retailers

14 retailers$1,281 NZD to $8,357 NZD

A
Cheapest Retailer
-
$1,281 NZD
$722 USD
A
Retailer 2
-
$1,395 NZD
$786 USD
View
A
Retailer 3
-
$1,469 NZD
£652 GBP
View
A
Retailer 4
-
$1,872 NZD
$1,055 USD
View
B+
Retailer 5
-
$2,042 NZD
$1,151 USD
View
B+
Retailer 6
-
$2,411 NZD
$1,359 USD
View
B
Retailer 7
-
$3,660 NZD
$2,063 USD
View
Retailer 8
-
$3,951 NZD
$2,227 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$4,312 NZD
$2,430 USD
View
B
Retailer 10
-
$4,613 NZD
$2,600 USD
View
Retailer 11
-
$4,729 NZD
$2,665 USD
View
Price last confirmed 24 days ago
B
Retailer 12
-
$6,183 NZD
£2,744 GBP
View
B
Retailer 13
-
$8,357 NZD
$4,710 USD
View
Most Expensive
Do Amore Diamonds
27-7BEF8F747 · Oct 31
$11,373 NZD
$6,410 USD
View
Price under review
13 more retailers have this diamond
Prices start from $1,281 NZDSave up to $7,076 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
4.00ct Oval
$1,281 NZD