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Cushion|Lab Grown|IGI

1.03ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG436045942

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436045942

Diamond specifications and retailer prices

From $387 AUD
As of November 6, 2026
Save $1,330 AUD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,717 AUD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045942 or 436045942. Listed at 8 retailers as of November 5, 2026, with prices from $387 to $1,717, a $1,330 spread on the same certified stone. MOH London lists it at $1,717. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045942
Dimensions5.92 × 5.81 × 3.94 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
5.92 mm5.81 mm1.03 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045942
Side View
Table 62.0%Crown 34.9°Girdle: MED-THKPavilion 42.1°Culet: NoneDepth 67.8%

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: $1,717 AUD|Low: $384 AUD|High: $1,741 AUD|Avg: $826 AUD|+1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$387 AUD
Retailer 8$387 AUD
Retailer 3$429 AUD
Retailer 2$605 AUD
Retailer 4$723 AUD
Retailer 6$767 AUD
Retailer 7$1,455 AUD
MOH London$1,717 AUD

41 data points across 8 retailers

8 retailers$387 AUD to $1,717 AUD

A
Cheapest Retailer
-
$387 AUD
Final sale: no returns
A
Retailer 2
-
$387 AUD
View
Retailer 3
-
$429 AUD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$605 AUD
View
A
Retailer 5
-
$723 AUD
View
A
Retailer 6
-
$767 AUD
View
B+
Retailer 7
-
$1,455 AUD
View
Most Expensive
A
MOH London
436045942 · Nov 5
$1,717 AUD
£929 GBP
View
7 more retailers have this diamond
Prices start from $387 AUDSave up to $1,330 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
$387 AUD