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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 $300 SGD
₹22,316 INR
As of November 1, 2026
Save $652 SGD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $951 SGD 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 November 1, 2026, with prices from $300 to $951, a $652 spread on the same certified stone. MOH London lists it at $951. 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
Colour
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: Nov 1
Current: $951 SGD|Low: $300 SGD|High: $1,023 SGD|Avg: $587 SGD|-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 2, 2026
Retailer 8$300 SGD
Retailer 6$360 SGD
Retailer 12$384 SGD
Retailer 5$444 SGD
Retailer 4$447 SGD
Retailer 13$511 SGD
Retailer 14$524 SGD
Retailer 2$530 SGD
Retailer 7$546 SGD
Retailer 15$562 SGD
Retailer 3$579 SGD
Retailer 11$639 SGD
Retailer 10$772 SGD
Retailer 9$834 SGD
MOH London$951 SGD

24 data points across 15 retailers

16 retailers$300 SGD to $951 SGD

A
Cheapest Retailer
-
$300 SGD
₹22,316 INR
A
Retailer 2
-
$360 SGD
HK$2,200 HKD
View
A
Retailer 3
-
$384 SGD
$300 USD
View
A
Retailer 4
-
$444 SGD
$347 USD
View
A
Retailer 5
-
$447 SGD
View
A
Retailer 6
-
$511 SGD
$400 USD
View
A
Retailer 7
-
$524 SGD
$410 USD
View
A
Retailer 8
-
$530 SGD
£327 GBP
View
Retailer 9
-
$546 SGD
$427 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$562 SGD
$440 USD
View
B+
Retailer 11
-
$579 SGD
$453 USD
View
B+
Retailer 12
-
$639 SGD
ZAR 8,071 ZAR
View
Retailer 13
-
$702 SGD
A$845 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$772 SGD
€575 EUR
View
B
Retailer 15
-
$834 SGD
£514 GBP
View
Most Expensive
B
MOH London
DBDC5FBD7 · Nov 1
$951 SGD
£586 GBP
View
15 more retailers have this diamond
Prices start from $300 SGDSave up to $652 SGD

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
$300 SGD