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Oval|Lab Grown|IGI

4.03ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG831623665

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG831623665

Diamond specifications and retailer prices

From $1,132 NZD
$638 USD
As of October 29, 2026
Save $5,717 NZD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,849 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.03ct lab-grown oval diamond

This 4.03ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831623665 or 831623665. Listed at 10 retailers as of October 29, 2026, with prices from $1,132 to $6,849, a $5,717 spread on the same certified stone. Brilliant Earth lists it at $6,849. 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

4.03
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831623665
Dimensions12.75 × 8.97 × 5.56 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm8.97 mm4.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831623665
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

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: $6,849 NZD|Low: $1,132 NZD|High: $451,416 NZD|Avg: $11,930 NZD|+4.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$1,132 NZD
Retailer 11$1,170 NZD
Retailer 4$1,490 NZD
Retailer 3$1,682 NZD
Retailer 8$1,798 NZD
Retailer 2$1,956 NZD
Retailer 7$3,109 NZD
Retailer 9$3,692 NZD
Retailer 5$4,013 NZD
Retailer 6$4,059 NZD
Brilliant Earth$6,849 NZD

26 data points across 11 retailers

10 retailers$1,132 NZD to $6,849 NZD

A
Cheapest Retailer
-
$1,132 NZD
$638 USD
Final sale: no returns
Retailer 2
-
$1,170 NZD
£519 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$1,490 NZD
$840 USD
View
B+
Retailer 4
-
$1,682 NZD
$948 USD
View
A
Retailer 5
-
$1,956 NZD
£868 GBP
View
B+
Retailer 6
-
$3,109 NZD
$1,752 USD
View
B
Retailer 7
-
$3,692 NZD
$2,081 USD
View
B
Retailer 8
-
$4,013 NZD
$2,262 USD
View
B
Retailer 9
-
$4,059 NZD
$2,288 USD
View
Most Expensive
B
Brilliant Earth
21799732A · Oct 29
$6,849 NZD
$3,860 USD
View
9 more retailers have this diamond
Prices start from $1,132 NZDSave up to $5,717 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
4.03ct Oval
$1,132 NZD