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Cushion|Natural|GIA

0.40ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2557428722

Certificate GIA 2557428722

Diamond specifications and retailer prices

From $327 CAD
₹22,321 INR
As of October 31, 2026
Save $712 CAD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,040 CAD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557428722. Listed at 16 retailers as of October 31, 2026, with prices from $327 to $1,040, a $712 spread on the same certified stone. MOH London lists it at $1,040. 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

0.40
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557428722
Dimensions5.32 × 3.59 × 2.46 mm
L/W Ratio1.48
Top View
5.32 mm3.59 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557428722
Side View
Table 68.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.7%

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: Oct 31
Current: $1,040 CAD|Low: $327 CAD|High: $1,118 CAD|Avg: $644 CAD|-7.0%
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
Retailer 15
November 1, 2026
Retailer 9$327 CAD
Retailer 6$393 CAD
Retailer 12$419 CAD
Retailer 5$485 CAD
Retailer 4$488 CAD
Retailer 13$559 CAD
Retailer 14$573 CAD
Retailer 8$579 CAD
Retailer 7$596 CAD
Retailer 15$614 CAD
Retailer 3$632 CAD
Retailer 11$698 CAD
Retailer 10$843 CAD
Retailer 2$911 CAD
MOH London$1,040 CAD

24 data points across 15 retailers

16 retailers$327 CAD to $1,040 CAD

A
Cheapest Retailer
-
$327 CAD
₹22,321 INR
A
Retailer 2
-
$393 CAD
HK$2,200 HKD
View
A
Retailer 3
-
$419 CAD
$300 USD
View
A
Retailer 4
-
$485 CAD
$347 USD
View
A
Retailer 5
-
$488 CAD
SGD 472 SGD
View
A
Retailer 6
-
$559 CAD
$400 USD
View
A
Retailer 7
-
$573 CAD
$410 USD
View
A
Retailer 8
-
$579 CAD
£327 GBP
View
Retailer 9
-
$596 CAD
$427 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$614 CAD
$440 USD
View
B+
Retailer 11
-
$632 CAD
$453 USD
View
B+
Retailer 12
-
$698 CAD
ZAR 8,071 ZAR
View
Retailer 13
-
$767 CAD
A$845 AUD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$843 CAD
€575 EUR
View
B
Retailer 15
-
$911 CAD
£514 GBP
View
Most Expensive
B
MOH London
DBDC5FBD7 · Nov 1
$1,040 CAD
£586 GBP
View
15 more retailers have this diamond
Prices start from $327 CADSave up to $712 CAD

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
0.40ct Cushion
$327 CAD