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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 $416 NZD
₹22,316 INR
As of November 1, 2026
Save $905 NZD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,320 NZD 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 $416 to $1,320, a $905 spread on the same certified stone. MOH London lists it at $1,320. 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: $1,320 NZD|Low: $416 NZD|High: $1,420 NZD|Avg: $816 NZD|-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 9$416 NZD
Retailer 6$500 NZD
Retailer 12$532 NZD
Retailer 5$616 NZD
Retailer 4$620 NZD
Retailer 13$710 NZD
Retailer 14$727 NZD
Retailer 8$736 NZD
Retailer 7$758 NZD
Retailer 15$780 NZD
Retailer 3$803 NZD
Retailer 11$886 NZD
Retailer 10$1,071 NZD
Retailer 2$1,157 NZD
MOH London$1,320 NZD

24 data points across 15 retailers

16 retailers$416 NZD to $1,320 NZD

A
Cheapest Retailer
-
$416 NZD
₹22,316 INR
A
Retailer 2
-
$500 NZD
HK$2,200 HKD
View
A
Retailer 3
-
$532 NZD
$300 USD
View
A
Retailer 4
-
$616 NZD
$347 USD
View
A
Retailer 5
-
$620 NZD
SGD 472 SGD
View
A
Retailer 6
-
$710 NZD
$400 USD
View
A
Retailer 7
-
$727 NZD
$410 USD
View
A
Retailer 8
-
$736 NZD
£327 GBP
View
Retailer 9
-
$758 NZD
$427 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$780 NZD
$440 USD
View
B+
Retailer 11
-
$803 NZD
$453 USD
View
B+
Retailer 12
-
$886 NZD
ZAR 8,071 ZAR
View
Retailer 13
-
$974 NZD
A$845 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$1,071 NZD
€575 EUR
View
B
Retailer 15
-
$1,157 NZD
£514 GBP
View
Most Expensive
B
MOH London
DBDC5FBD7 · Nov 1
$1,320 NZD
£586 GBP
View
15 more retailers have this diamond
Prices start from $416 NZDSave up to $905 NZD

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
$416 NZD