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Cushion|Natural|IGI

0.40ct J SI1 Cushion Natural Diamond

VG • J/SI1 • IGI 741597200

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

Certificate IGI 741597200

Diamond specifications and retailer prices

From $767 AUD
£424 GBP
As of November 2, 2026
Save $611 AUD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,378 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 741597200. Listed at 6 retailers as of November 1, 2026, with prices from $767 to $1,378, a $611 spread on the same certified stone. MOH London lists it at $1,378. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 741597200
Dimensions4.22 × 4.18 × 2.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.22 mm4.18 mm0.40 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 741597200
Side View
Table 66.0%Crown 40°Girdle: THK-VTKPavilion 37.4°Culet: NoneDepth 66.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,378 AUD|Low: $715 AUD|High: $1,414 AUD|Avg: $952 AUD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$767 AUD
Retailer 5$783 AUD
Retailer 6$831 AUD
Retailer 3$910 AUD
Retailer 4$924 AUD
Retailer 7$1,061 AUD
MOH London$1,378 AUD

41 data points across 7 retailers

6 retailers$767 AUD to $1,378 AUD

B
Cheapest Retailer
-
$767 AUD
£424 GBP
B
Retailer 2
-
$783 AUD
$550 USD
View
B
Retailer 3
-
$831 AUD
$584 USD
View
B
Retailer 4
-
$910 AUD
€609 EUR
View
B
Retailer 5
-
$924 AUD
ZAR 10,490 ZAR
View
Most Expensive
C
MOH London
1E2775491 · Nov 1
$1,378 AUD
£762 GBP
View
5 more retailers have this diamond
Prices start from $767 AUDSave up to $611 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.

B
0.40ct Cushion
$767 AUD