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Cushion|Lab Grown|IGI

1.03ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG729532548

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG729532548

Diamond specifications and retailer prices

From $523 NZD
As of November 6, 2026
Save $1,278 NZD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,801 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG729532548 or 729532548. Listed at 8 retailers as of November 5, 2026, with prices from $523 to $1,801, a $1,278 spread on the same certified stone. MOH London lists it at $1,801. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729532548
Dimensions6.12 × 5.93 × 3.80 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.12 mm5.93 mm1.03 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729532548
Side View
Table 60.0%Crown 33.6°Girdle: THN-MEDPavilion 38.6°Culet: NoneDepth 64.1%

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: Nov 6
Current: $1,801 NZD|Low: $523 NZD|High: $1,828 NZD|Avg: $928 NZD|+4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$523 NZD
Retailer 6$557 NZD
Retailer 3$680 NZD
Retailer 2$714 NZD
Retailer 8$722 NZD
Retailer 5$884 NZD
Retailer 4$1,028 NZD
Retailer 9$1,338 NZD
MOH London$1,801 NZD

42 data points across 9 retailers

8 retailers$523 NZD to $1,801 NZD

B+
Cheapest Retailer
-
$523 NZD
A
Retailer 2
-
$557 NZD
View
A
Retailer 3
-
$680 NZD
View
B+
Retailer 4
-
$714 NZD
View
B+
Retailer 5
-
$884 NZD
View
B+
Retailer 6
-
$1,028 NZD
View
B
Retailer 7
-
$1,338 NZD
View
Most Expensive
B
MOH London
LG729532548 · Nov 5
$1,801 NZD
£786 GBP
View
7 more retailers have this diamond
Prices start from $523 NZDSave up to $1,278 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
1.03ct Cushion
$523 NZD