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Oval|Lab Grown|IGI

4.28ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG602311263

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG602311263

Diamond specifications and retailer prices

From $990 NZD
$558 USD
As of October 29, 2026
Save $7,793 NZD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,783 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown oval diamond

This 4.28ct 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 LG602311263 or 602311263. Listed at 9 retailers as of October 29, 2026, with prices from $990 to $8,783, a $7,793 spread on the same certified stone. Do Amore Diamonds lists it at $8,783. 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

4.28
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602311263
Dimensions13.44 × 8.96 × 5.61 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.44 mm8.96 mm4.28 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602311263
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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: $8,783 NZD|Low: $979 NZD|High: $13,538 NZD|Avg: $4,420 NZD|-3.1%
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
October 31, 2026
Retailer 10$990 NZD
Retailer 2$1,097 NZD
Retailer 13$1,891 NZD
Retailer 8$1,899 NZD
Retailer 5$2,103 NZD
Retailer 4$2,182 NZD
Retailer 9$3,167 NZD
Retailer 14$3,327 NZD
Retailer 3$3,493 NZD
Retailer 12$3,565 NZD
Retailer 7$5,915 NZD
Retailer 11$6,148 NZD
Do Amore Diamonds$8,783 NZD
Retailer 6$13,538 NZD

25 data points across 14 retailers

9 retailers$990 NZD to $8,783 NZD

A
Cheapest Retailer
-
$990 NZD
$558 USD
A
Retailer 2
-
$1,097 NZD
$618 USD
View
B+
Retailer 3
-
$1,891 NZD
$1,066 USD
View
A
Retailer 4
-
$1,899 NZD
$1,070 USD
View
B+
Retailer 5
-
$3,167 NZD
$1,785 USD
View
B+
Retailer 6
-
$3,565 NZD
$2,009 USD
View
B
Retailer 7
-
$5,915 NZD
£2,625 GBP
View
Retailer 8
-
$6,148 NZD
$3,465 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-E3AA6C982 · Oct 31
$8,783 NZD
$4,950 USD
View
8 more retailers have this diamond
Prices start from $990 NZDSave up to $7,793 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
4.28ct Oval
$990 NZD