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Cushion|Lab Grown|IGI

1.03ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG818673728

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818673728

Diamond specifications and retailer prices

From $210 AUD
As of November 6, 2026
Save $1,783 AUD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,993 AUD at MOH London · As of November 2, 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 LG818673728 or 818673728. Listed at 14 retailers as of November 2, 2026, with prices from $210 to $1,993, a $1,783 spread on the same certified stone. MOH London lists it at $1,993. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818673728
Dimensions6.61 × 5.18 × 3.63 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm5.18 mm1.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818673728
Side View
Table 59.0%Crown 35.3°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 70.1%

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: Nov 6
Current: $1,993 AUD|Low: $210 AUD|High: $2,041 AUD|Avg: $727 AUD|-2.2%
MOH London
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
November 6, 2026
Retailer 8$210 AUD
Retailer 9$300 AUD
Retailer 14$317 AUD
Retailer 13$386 AUD
Retailer 2$418 AUD
Retailer 7$428 AUD
Retailer 3$442 AUD
Retailer 4$600 AUD
Retailer 12$648 AUD
Retailer 6$720 AUD
Retailer 5$728 AUD
Retailer 10$831 AUD
Retailer 11$1,407 AUD
MOH London$1,993 AUD

43 data points across 14 retailers

14 retailers$210 AUD to $1,993 AUD

A
Cheapest Retailer
-
$210 AUD
Final sale: no returns
A
Retailer 2
-
$300 AUD
View
B+
Retailer 3
-
$317 AUD
View
A
Retailer 4
-
$386 AUD
View
A
Retailer 5
-
$418 AUD
View
A
Retailer 6
-
$428 AUD
View
A
Retailer 7
-
$442 AUD
View
A
Retailer 8
-
$600 AUD
View
B+
Retailer 9
-
$648 AUD
View
B+
Retailer 10
-
$720 AUD
View
B+
Retailer 11
-
$728 AUD
View
B+
Retailer 12
-
$831 AUD
View
B
Retailer 13
-
$1,407 AUD
View
Most Expensive
B
MOH London
LG818673728 · Nov 2
$1,993 AUD
£1,078 GBP
View
13 more retailers have this diamond
Prices start from $210 AUDSave up to $1,783 AUD

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
$210 AUD