Oval|Lab Grown|IGI

4.06ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG818630572

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818630572

Diamond specifications and retailer prices

From $896 NZD
$505 USD
As of October 29, 2026
Save $8,011 NZD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,907 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.06ct lab-grown oval diamond

This 4.06ct 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 LG818630572 or 818630572. Listed at 17 retailers as of October 29, 2026, with prices from $896 to $8,907, a $8,011 spread on the same certified stone. Brilliant Earth lists it at $8,907. 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

4.06
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818630572
Dimensions12.54 × 8.91 × 5.55 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.54 mm8.91 mm4.06 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818630572
Side View
Table 59.0%Crown 38.3°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $8,907 NZD|Low: $648 NZD|High: $9,528 NZD|Avg: $2,675 NZD|-5.1%
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
October 31, 2026
Retailer 9$832 NZD
Retailer 11$896 NZD
Retailer 5$1,006 NZD
Retailer 8$1,242 NZD
Retailer 12$1,331 NZD
Retailer 2$1,548 NZD
Retailer 6$1,628 NZD
Retailer 4$2,473 NZD
Retailer 10$2,667 NZD
Retailer 3$3,246 NZD
Retailer 13$3,374 NZD
Retailer 7$3,664 NZD
Brilliant Earth$8,907 NZD

42 data points across 13 retailers

17 retailers$896 NZD to $8,907 NZD

Retailer 1
-
$811 NZD
$457 USD
Price last confirmed 32 days ago
Retailer 2
-
$832 NZD
£369 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$896 NZD
$505 USD
View
Final sale: no returns
Retailer 4
-
$908 NZD
$512 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$992 NZD
$559 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$992 NZD
$559 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
$1,242 NZD
$700 USD
View
B+
Retailer 8
-
$1,331 NZD
$750 USD
View
A
Retailer 9
-
$1,548 NZD
€831 EUR
View
A
Retailer 10
-
$1,628 NZD
£722 GBP
View
B+
Retailer 11
-
$2,473 NZD
$1,394 USD
View
B+
Retailer 12
-
$2,667 NZD
$1,503 USD
View
Retailer 13
-
$3,233 NZD
$1,822 USD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
$3,246 NZD
$1,829 USD
View
B
Retailer 15
-
$3,374 NZD
$1,901 USD
View
B
Retailer 16
-
$3,664 NZD
£1,626 GBP
View
Most Expensive
B
Brilliant Earth
20906828A · Oct 29
$8,907 NZD
$5,020 USD
View
16 more retailers have this diamond
Prices start from $896 NZDSave up to $8,011 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
4.06ct Oval
$896 NZD